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Finding the Fourth Proportional to 52,616.87, 72,616.28 and 28,747.14

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Solution

The fourth proportional to 52,616.87, 72,616.28 and 28,747.14 is: 39,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,616.87 : 72,616.28 = 28,747.14 : x
  2. Step 2: Convert to fraction form
    52,616.87/72,616.28 = 28,747.14/x
  3. Step 3: Cross multiply
    52,616.87x = 72,616.28 × 28,747.14
  4. Step 4: Simplify right side
    52,616.87x = 2,087,510,367.44
  5. Step 5: Solve for x
    x = 2,087,510,367.44/52,616.87
  6. Step 6: Final answer
    x = 39,673.78

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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.