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Finding the Fourth Proportional to 60,748.76, 91,129.63 and 25,691.96

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Solution

The fourth proportional to 60,748.76, 91,129.63 and 25,691.96 is: 38,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,748.76 : 91,129.63 = 25,691.96 : x
  2. Step 2: Convert to fraction form
    60,748.76/91,129.63 = 25,691.96/x
  3. Step 3: Cross multiply
    60,748.76x = 91,129.63 × 25,691.96
  4. Step 4: Simplify right side
    60,748.76x = 2,341,298,808.77
  5. Step 5: Solve for x
    x = 2,341,298,808.77/60,748.76
  6. Step 6: Final answer
    x = 38,540.68

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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.