Answer:
6:9,2:3
Step-by-step explanation:
sorry I Only knew this much
well to make life easier
You can always just simplify the given ratio
12:18 is basically 2:3 and we can use that as a base line
so we got
2:3
6:9
12:18
24:36
48: 72
It goes on you can just multiply by 2
