To round 17.4327 to the nearest thousandth, we look at the digit in the thousandths place, which is the third digit to the right of the decimal point.
In 17.4327:
- The digit in the thousandths place is 2 (in 17.432).
- The next digit (in the ten-thousandths place) is 7.
Since 7 is greater than or equal to 5, we round the 2 up by 1.
Therefore, 17.4327 rounded to the nearest thousandth is 17.433.
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