Answer:
The final width of the photo is 48 centimeters.
Explanation:
Givens:
- The initial width is 3 centimeters.
- When you enlarge the photo, its width doubled.
- You enlarge the photo four times.
According to the problem, each enlargement represents a doubled width. Now, if you enlarge it four times, that means we need to make a progession, where the initial number is three

Therefore, after four enlargements, the width of the photo is 48 centimeters.