Question

complete the ratio table.
(table with rows: blank, 9, 8, 36, 10, 45, 12, blank, 20, 90)

Explanation:

Step1: Find the ratio factor

Take the pair (8, 36). Calculate $\frac{36}{8} = 4.5$. Verify with (10,45): $\frac{45}{10}=4.5$, (20,90): $\frac{90}{20}=4.5$. The right value = left value $\times 4.5$.

Step2: Find first missing value

Let left value be $x$. $x \times 4.5 =9$. Solve: $x=\frac{9}{4.5}=2$.

Step3: Find second missing value

Left value is 12. Calculate $12 \times 4.5=54$.

Answer:

The first missing value is 2, the second missing value is 54. The completed table is:

2	9
10	45
12	54
20	90