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Finding the Fourth Proportional to 61,963.92, 92,947.68 and 15,216.78

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Solution

The fourth proportional to 61,963.92, 92,947.68 and 15,216.78 is: 22,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.92 : 92,947.68 = 15,216.78 : x
  2. Step 2: Convert to fraction form
    61,963.92/92,947.68 = 15,216.78/x
  3. Step 3: Cross multiply
    61,963.92x = 92,947.68 × 15,216.78
  4. Step 4: Simplify right side
    61,963.92x = 1,414,364,398.07
  5. Step 5: Solve for x
    x = 1,414,364,398.07/61,963.92
  6. Step 6: Final answer
    x = 22,825.61

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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.