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Finding the Fourth Proportional to 71,762.40, 107,624.40 and 25,010.40

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Solution

The fourth proportional to 71,762.40, 107,624.40 and 25,010.40 is: 37,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,762.40 : 107,624.40 = 25,010.40 : x
  2. Step 2: Convert to fraction form
    71,762.40/107,624.40 = 25,010.40/x
  3. Step 3: Cross multiply
    71,762.40x = 107,624.40 × 25,010.40
  4. Step 4: Simplify right side
    71,762.40x = 2,691,729,293.76
  5. Step 5: Solve for x
    x = 2,691,729,293.76/71,762.40
  6. Step 6: Final answer
    x = 37,508.91

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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.