1. 12 : 16 = 15 : 24
2. 9 : 15 = 12 : 20
3. 5 : 20 = 8 : 32
4. 18 : 30 = 15 : 20
5. 6 : 24 = 3 : 12
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Step-by-step explanation:
1)12/16=15/24
3:4=5:8 it is not a proportion (false)
2) 9/15=12/20
3:5=3:5 it is proportion (true)
3)5/20=8/32
1:4=1:4 it is proportion true
4)18/30=15/20
3:5=3:4 it's not a proportion False
5)6/24=3/12
1:4=1:4 it's a proportion true
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