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Finding the Fourth Proportional to 52,404.96, 72,318.84 and 28,531.80

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Solution

The fourth proportional to 52,404.96, 72,318.84 and 28,531.80 is: 39,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,404.96 : 72,318.84 = 28,531.80 : x
  2. Step 2: Convert to fraction form
    52,404.96/72,318.84 = 28,531.80/x
  3. Step 3: Cross multiply
    52,404.96x = 72,318.84 × 28,531.80
  4. Step 4: Simplify right side
    52,404.96x = 2,063,386,679.11
  5. Step 5: Solve for x
    x = 2,063,386,679.11/52,404.96
  6. Step 6: Final answer
    x = 39,373.88

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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.