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Finding the Fourth Proportional to 48,366.16, 66,711.72 and 39,413.68

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Solution

The fourth proportional to 48,366.16, 66,711.72 and 39,413.68 is: 54,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,366.16 : 66,711.72 = 39,413.68 : x
  2. Step 2: Convert to fraction form
    48,366.16/66,711.72 = 39,413.68/x
  3. Step 3: Cross multiply
    48,366.16x = 66,711.72 × 39,413.68
  4. Step 4: Simplify right side
    48,366.16x = 2,629,354,384.33
  5. Step 5: Solve for x
    x = 2,629,354,384.33/48,366.16
  6. Step 6: Final answer
    x = 54,363.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.