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Finding the Fourth Proportional to 63,629.92, 87,809.43 and 35,335.61

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Solution

The fourth proportional to 63,629.92, 87,809.43 and 35,335.61 is: 48,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,629.92 : 87,809.43 = 35,335.61 : x
  2. Step 2: Convert to fraction form
    63,629.92/87,809.43 = 35,335.61/x
  3. Step 3: Cross multiply
    63,629.92x = 87,809.43 × 35,335.61
  4. Step 4: Simplify right side
    63,629.92x = 3,102,799,772.80
  5. Step 5: Solve for x
    x = 3,102,799,772.80/63,629.92
  6. Step 6: Final answer
    x = 48,763.22

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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.