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Finding the Fourth Proportional to 40,471.19, 60,700.85 and 29,279.90

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Solution

The fourth proportional to 40,471.19, 60,700.85 and 29,279.90 is: 43,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,471.19 : 60,700.85 = 29,279.90 : x
  2. Step 2: Convert to fraction form
    40,471.19/60,700.85 = 29,279.90/x
  3. Step 3: Cross multiply
    40,471.19x = 60,700.85 × 29,279.90
  4. Step 4: Simplify right side
    40,471.19x = 1,777,314,587.61
  5. Step 5: Solve for x
    x = 1,777,314,587.61/40,471.19
  6. Step 6: Final answer
    x = 43,915.56

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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.