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Finding the Fourth Proportional to 61,760.76, 92,641.14 and 15,013.50

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Solution

The fourth proportional to 61,760.76, 92,641.14 and 15,013.50 is: 22,520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,760.76 : 92,641.14 = 15,013.50 : x
  2. Step 2: Convert to fraction form
    61,760.76/92,641.14 = 15,013.50/x
  3. Step 3: Cross multiply
    61,760.76x = 92,641.14 × 15,013.50
  4. Step 4: Simplify right side
    61,760.76x = 1,390,867,755.39
  5. Step 5: Solve for x
    x = 1,390,867,755.39/61,760.76
  6. Step 6: Final answer
    x = 22,520.25

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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.