Question

If x : 7.5:: 7:17.5 thenx
=​

Answer 1

$\frac{x}{7.5} = \frac{7}{17.5} \\ x = \frac{7 \times 7.5}{17.5} \\ \\ x = 3$

there you go :)

Answer 2

Step-by-step explanation:

x: 7.5 = 7:17.5

17.5x = 7.5 * 7

x = 7.5 * 7 ÷ 17.5

x=3