Which means that 10.0gr of the medicine are dissolved in 1 fluidram solution. So 7.5gr will be dissolved in = 7.5/10.0 => 0.75 fluidram
Now we know that 1 fluidram is equal to 3.72mL.
So 0.75 fluidram = 0.75 x 3.72 => 2.79mL
1gr = 64.8mg
Then 7.5gr= 7.5 x 64.8 =486mg
So you would give the patient 2.79mL or 486mg of the dose.