Find the third proportional to 16 and 20.
25
For third proportional \(c\) to 16 and 20: \(\tfrac{16}{20}=\tfrac{20}{c}\).
Cross-multiplying: \(c=\tfrac{20^2}{16}=\tfrac{400}{16}=\) 25.
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Important Questions from Third Proportional
Find the third proportion to 16 and 24.
Find the third proportional to 16 and 24.
What is the third proportional to the numbers 9 and 45?
Find the third proportional to 6 and 12.
Find the 3 rd proportional to 9 and 21.
