Convert 7120 mL to the unit dm3.

One milliliter is equivalent to one centimeter cubed. Therefore,

7,120 mL = 7,120 cm³

One decimeter is equal to ten centimeters,

1 dm = 10 cm

Cubing both sides,

1 dm³ = 1000 cm³

x dm³ = 7,120 cm³

Cross multiplying and solving for x, we get

7.12 dm³ = 7,120 mL