Answer:
20:45 is proportional to 4:9
9:27 is not proportional to 33:11
Explanation:
To find if two ratios are proportional you can write them as fractions and simplify them.
So 20/45 can be simplified to 4/9
20/5 = 4
45/5 = 9
20/45 = 4/9
9/27 cannot be simplified into 33/11
So it is not proportional
