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Finding the Fourth Proportional to 61,947.92, 85,480.86 and 36,448.68

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Solution

The fourth proportional to 61,947.92, 85,480.86 and 36,448.68 is: 50,294.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947.92 : 85,480.86 = 36,448.68 : x
  2. Step 2: Convert to fraction form
    61,947.92/85,480.86 = 36,448.68/x
  3. Step 3: Cross multiply
    61,947.92x = 85,480.86 × 36,448.68
  4. Step 4: Simplify right side
    61,947.92x = 3,115,664,512.26
  5. Step 5: Solve for x
    x = 3,115,664,512.26/61,947.92
  6. Step 6: Final answer
    x = 50,294.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.