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Finding the Fourth Proportional to 71,355.60, 107,034.60 and 27,003.24

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Solution

The fourth proportional to 71,355.60, 107,034.60 and 27,003.24 is: 40,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,355.60 : 107,034.60 = 27,003.24 : x
  2. Step 2: Convert to fraction form
    71,355.60/107,034.60 = 27,003.24/x
  3. Step 3: Cross multiply
    71,355.60x = 107,034.60 × 27,003.24
  4. Step 4: Simplify right side
    71,355.60x = 2,890,280,992.10
  5. Step 5: Solve for x
    x = 2,890,280,992.10/71,355.60
  6. Step 6: Final answer
    x = 40,505.31

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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.