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Finding the Fourth Proportional to 63,669.72, 87,863.58 and 35,374.80

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Solution

The fourth proportional to 63,669.72, 87,863.58 and 35,374.80 is: 48,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,669.72 : 87,863.58 = 35,374.80 : x
  2. Step 2: Convert to fraction form
    63,669.72/87,863.58 = 35,374.80/x
  3. Step 3: Cross multiply
    63,669.72x = 87,863.58 × 35,374.80
  4. Step 4: Simplify right side
    63,669.72x = 3,108,156,569.78
  5. Step 5: Solve for x
    x = 3,108,156,569.78/63,669.72
  6. Step 6: Final answer
    x = 48,816.87

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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.