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Finding the Fourth Proportional to 40,291.52, 60,481.02 and 29,728.40

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Solution

The fourth proportional to 40,291.52, 60,481.02 and 29,728.40 is: 44,624.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,291.52 : 60,481.02 = 29,728.40 : x
  2. Step 2: Convert to fraction form
    40,291.52/60,481.02 = 29,728.40/x
  3. Step 3: Cross multiply
    40,291.52x = 60,481.02 × 29,728.40
  4. Step 4: Simplify right side
    40,291.52x = 1,798,003,954.97
  5. Step 5: Solve for x
    x = 1,798,003,954.97/40,291.52
  6. Step 6: Final answer
    x = 44,624.87

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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.