Answer: 21
Step-by-step explanation:
To find the missing number you set the two equations as a proportion:
[tex]\frac{7}{9} = \frac{x}{27}[/tex]
To solve for x we cross multiply:
27 × 7 = 189
9 × x = 9x
Set up an equation:
9x = 189
Divide both sides by 9:
x = 21
