To find an equivalent ratio of 12:36 as x:3, we need to find a number that can be multiplied to both 12 and 36 to get 3.
First, simplify the ratio 12:36 by dividing both numbers by their greatest common factor, which is 12.
12 ÷ 12 = 1
36 ÷ 12 = 3
So, 12:36 simplifies to 1:3.
To find an equivalent ratio of x:3, we need to find a number that can be multiplied to both 1 and 3 to get 3. This number is 3.
1 x 3 = 3
3 x 3 = 9
Therefore, the equivalent ratio of 12:36 as x:3 is 3:9.