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Finding the Fourth Proportional to 63,648.86, 87,838.20 and 35,354.55

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Solution

The fourth proportional to 63,648.86, 87,838.20 and 35,354.55 is: 48,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,648.86 : 87,838.20 = 35,354.55 : x
  2. Step 2: Convert to fraction form
    63,648.86/87,838.20 = 35,354.55/x
  3. Step 3: Cross multiply
    63,648.86x = 87,838.20 × 35,354.55
  4. Step 4: Simplify right side
    63,648.86x = 3,105,479,594.62
  5. Step 5: Solve for x
    x = 3,105,479,594.62/63,648.86
  6. Step 6: Final answer
    x = 48,790.82

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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.