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Finding the Fourth Proportional to 61,876.64, 92,814.05 and 15,129.92

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Solution

The fourth proportional to 61,876.64, 92,814.05 and 15,129.92 is: 22,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,876.64 : 92,814.05 = 15,129.92 : x
  2. Step 2: Convert to fraction form
    61,876.64/92,814.05 = 15,129.92/x
  3. Step 3: Cross multiply
    61,876.64x = 92,814.05 × 15,129.92
  4. Step 4: Simplify right side
    61,876.64x = 1,404,269,421.24
  5. Step 5: Solve for x
    x = 1,404,269,421.24/61,876.64
  6. Step 6: Final answer
    x = 22,694.66

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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.