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Finding the Fourth Proportional to 71,546.60, 107,320.89 and 21,627.11

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Solution

The fourth proportional to 71,546.60, 107,320.89 and 21,627.11 is: 32,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,546.60 : 107,320.89 = 21,627.11 : x
  2. Step 2: Convert to fraction form
    71,546.60/107,320.89 = 21,627.11/x
  3. Step 3: Cross multiply
    71,546.60x = 107,320.89 × 21,627.11
  4. Step 4: Simplify right side
    71,546.60x = 2,321,040,693.33
  5. Step 5: Solve for x
    x = 2,321,040,693.33/71,546.60
  6. Step 6: Final answer
    x = 32,440.96

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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.