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Finding the Fourth Proportional to 40,713.20, 60,940.20 and 29,049.20

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Solution

The fourth proportional to 40,713.20, 60,940.20 and 29,049.20 is: 43,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,713.20 : 60,940.20 = 29,049.20 : x
  2. Step 2: Convert to fraction form
    40,713.20/60,940.20 = 29,049.20/x
  3. Step 3: Cross multiply
    40,713.20x = 60,940.20 × 29,049.20
  4. Step 4: Simplify right side
    40,713.20x = 1,770,264,057.84
  5. Step 5: Solve for x
    x = 1,770,264,057.84/40,713.20
  6. Step 6: Final answer
    x = 43,481.33

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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.