Answer :
Final answer:
To find the original dosage, set up a proportion with the new dosage and the percent increase, and solve for the unknown.
Explanation:
To find the original dosage, we can set up the proportion:
New Dosage / Original Dosage = Percent Increase / 100
Given that the new dosage is 3840 units and the percent increase is 128%, we can substitute these values into the proportion:
3840 / Original Dosage = 128 / 100
To solve for the original dosage, we can cross multiply and solve for the unknown:
128 * Original Dosage = 3840 * 100
Original Dosage = (3840 * 100) / 128
Calculating the equation, we find that the original dosage is 3000 units.