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Finding the Fourth Proportional to 52,992.92, 73,129.88 and 28,793.80

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Solution

The fourth proportional to 52,992.92, 73,129.88 and 28,793.80 is: 39,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,992.92 : 73,129.88 = 28,793.80 : x
  2. Step 2: Convert to fraction form
    52,992.92/73,129.88 = 28,793.80/x
  3. Step 3: Cross multiply
    52,992.92x = 73,129.88 × 28,793.80
  4. Step 4: Simplify right side
    52,992.92x = 2,105,687,138.74
  5. Step 5: Solve for x
    x = 2,105,687,138.74/52,992.92
  6. Step 6: Final answer
    x = 39,735.25

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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.