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Finding the Fourth Proportional to 52,363.01, 72,260.61 and 28,489.78

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Solution

The fourth proportional to 52,363.01, 72,260.61 and 28,489.78 is: 39,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,363.01 : 72,260.61 = 28,489.78 : x
  2. Step 2: Convert to fraction form
    52,363.01/72,260.61 = 28,489.78/x
  3. Step 3: Cross multiply
    52,363.01x = 72,260.61 × 28,489.78
  4. Step 4: Simplify right side
    52,363.01x = 2,058,688,458.59
  5. Step 5: Solve for x
    x = 2,058,688,458.59/52,363.01
  6. Step 6: Final answer
    x = 39,315.70

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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.