A/b=c
times both sides by b
A=bc
divide both sides by c
A/c=b
b=A/c
Answer:
d= 8.6 ft
Step-by-step explanation:
In similar triangles, the corresponding sides are in proportion.

To find the value of x,

d = 8.6 ft
Thx from the website http://goodcalculators.com/ratio-calculator/
1) 199/30
2) 95/12
3) 47/10
4) 103/15
5) 83/10
6) 221/30