Question

74. One triangle has side lengths of 5 inches, 12

inches, and 13 inches. The side lengths of a
second triangle are 15 inches, 36 inches, and 39
inches. What is the constant of proportionality
between the two triangles?

Answer 1

`\boxed{3}`

Explanation:

The constant of proportionality is the ratio of corresponding sides

`\text{Ratio} = (15)/(5) = (36)/(12) = (39)/(13) =\mathbf{3}\\\text{The constant of proportionality is $\boxed{\mathbf{3}}$}`