To find the Canadian dollar equivalent of 25 USD using the given conversion chart, we can identify the closest equivalent ratios provided in the chart.
From the chart, the relevant conversions are:
- 21.66 CAD for 18 USD
- 24.75 CAD for 21 USD
- 34.65 CAD for 28 USD
Since 25 USD is between 21 USD and 28 USD, we can estimate the value for 25 USD using these two values.
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Calculate the difference in USD:
- 28 USD - 21 USD = 7 USD
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Calculate the difference in CAD:
- 34.65 CAD - 24.75 CAD = 9.90 CAD
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Determine the CAD equivalent for 1 USD within this range:
- For each USD between 21 and 28, the CAD increase is \( \frac{9.90 \text{ CAD}}{7 \text{ USD}} \approx 1.4143 \text{ CAD per USD} \)
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Since 25 USD is 4 USD above 21 USD, we can calculate the increase from 21 USD:
- Increase in CAD = 4 USD × 1.4143 CAD/USD ≈ 5.6572 CAD
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Add it to the 21 USD conversion:
- 24.75 CAD + 5.6572 CAD ≈ 30.41 CAD
Thus, the Canadian dollar equivalent of 25 USD is approximately 30.41 CAD.
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