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Finding the Fourth Proportional to 71,997.18, 108,043.98 and 29,877.30

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Solution

The fourth proportional to 71,997.18, 108,043.98 and 29,877.30 is: 44,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,997.18 : 108,043.98 = 29,877.30 : x
  2. Step 2: Convert to fraction form
    71,997.18/108,043.98 = 29,877.30/x
  3. Step 3: Cross multiply
    71,997.18x = 108,043.98 × 29,877.30
  4. Step 4: Simplify right side
    71,997.18x = 3,228,062,524.38
  5. Step 5: Solve for x
    x = 3,228,062,524.38/71,997.18
  6. Step 6: Final answer
    x = 44,835.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.