Question

Use proportion to answer the question. Show all work. Label your answers.

Answer 1

4 cm : 18 km

7 cm : d

$\begin{gathered} \frac{4}{18}=\frac{7}{d} \\ 4\times d=7\times18 \\ 4d=126 \\ \frac{4d}{4}=\frac{126}{4} \\ d=31.5 \end{gathered}$

answer: distance for the cities is 31.5 km