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Finding the Fourth Proportional to 61,787.54, 92,708.94 and 28,489.74

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Solution

The fourth proportional to 61,787.54, 92,708.94 and 28,489.74 is: 42,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,787.54 : 92,708.94 = 28,489.74 : x
  2. Step 2: Convert to fraction form
    61,787.54/92,708.94 = 28,489.74/x
  3. Step 3: Cross multiply
    61,787.54x = 92,708.94 × 28,489.74
  4. Step 4: Simplify right side
    61,787.54x = 2,641,253,596.28
  5. Step 5: Solve for x
    x = 2,641,253,596.28/61,787.54
  6. Step 6: Final answer
    x = 42,747.35

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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.