8
9000 x 8 = 72000
218.1818
18000
720
20 divided into 9000 = 0.0022222222222222222
9000
72000 shares a factor with 40000. This factor is 8000. By having one factor be the same, both of these equations, when divided by the factors NOT shared, will have the same quotient.
9000
562.5
9000
2250
300