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Finding the Fourth Proportional to 63,557.97, 87,709.76 and 34,878.11

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Solution

The fourth proportional to 63,557.97, 87,709.76 and 34,878.11 is: 48,131.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,557.97 : 87,709.76 = 34,878.11 : x
  2. Step 2: Convert to fraction form
    63,557.97/87,709.76 = 34,878.11/x
  3. Step 3: Cross multiply
    63,557.97x = 87,709.76 × 34,878.11
  4. Step 4: Simplify right side
    63,557.97x = 3,059,150,657.35
  5. Step 5: Solve for x
    x = 3,059,150,657.35/63,557.97
  6. Step 6: Final answer
    x = 48,131.66

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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.