Question

type the answer 3 : 5 = 9 : blank

Explanation:

Step1: Recall proportion property

In a proportion \(a:b = c:d\), \(ad = bc\). Here, \(a = 3\), \(b = 5\), \(c = 9\), find \(d\).

Step2: Apply the property

\(3\times d=5\times9\)
\(3d = 45\)

Step3: Solve for d

\(d=\frac{45}{3}=15\)

Answer:

15