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Finding the Fourth Proportional to 63,558.90, 87,711.03 and 34,879.05

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Solution

The fourth proportional to 63,558.90, 87,711.03 and 34,879.05 is: 48,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,558.90 : 87,711.03 = 34,879.05 : x
  2. Step 2: Convert to fraction form
    63,558.90/87,711.03 = 34,879.05/x
  3. Step 3: Cross multiply
    63,558.90x = 87,711.03 × 34,879.05
  4. Step 4: Simplify right side
    63,558.90x = 3,059,277,400.92
  5. Step 5: Solve for x
    x = 3,059,277,400.92/63,558.90
  6. Step 6: Final answer
    x = 48,132.95

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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.