To express the ratio \(12:36\) as an equivalent ratio of \(x:3\), we can first simplify the ratio \(12:36\).
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Simplify \(12:36\): \[ \frac{12}{36} = \frac{1}{3} \] So, \(12:36\) simplifies to \(1:3\).
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Now, we want to express this as \(x:3\). Since \(1:3\) is the same as \(x:3\), we can directly see that: \[ x = 1 \]
Therefore, the equivalent ratio is \(1:3\), and \(x\) is \(1\).