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Finding the Fourth Proportional to 63,086.75, 87,059.80 and 34,406.46

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Solution

The fourth proportional to 63,086.75, 87,059.80 and 34,406.46 is: 47,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,086.75 : 87,059.80 = 34,406.46 : x
  2. Step 2: Convert to fraction form
    63,086.75/87,059.80 = 34,406.46/x
  3. Step 3: Cross multiply
    63,086.75x = 87,059.80 × 34,406.46
  4. Step 4: Simplify right side
    63,086.75x = 2,995,419,440.29
  5. Step 5: Solve for x
    x = 2,995,419,440.29/63,086.75
  6. Step 6: Final answer
    x = 47,480.96

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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.