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Finding the Fourth Proportional to 52,487.63, 72,429.30 and 29,520.89

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Solution

The fourth proportional to 52,487.63, 72,429.30 and 29,520.89 is: 40,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,487.63 : 72,429.30 = 29,520.89 : x
  2. Step 2: Convert to fraction form
    52,487.63/72,429.30 = 29,520.89/x
  3. Step 3: Cross multiply
    52,487.63x = 72,429.30 × 29,520.89
  4. Step 4: Simplify right side
    52,487.63x = 2,138,177,398.08
  5. Step 5: Solve for x
    x = 2,138,177,398.08/52,487.63
  6. Step 6: Final answer
    x = 40,736.79

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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.