$\"\"$

The proportion is $\"\"$ .

Multiply each side by $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$

$\"\"$ . $\"\"$

To check the solution, substitute the value of $\"\"$ in the proportion $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$ .

This statement is true, so the value of $\"\"$ is the solution of $\"\"$ . $\"\"$

The value of $\"\"$ .