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Finding the Fourth Proportional to 63,769.92, 95,634.60 and 21,065.88

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Solution

The fourth proportional to 63,769.92, 95,634.60 and 21,065.88 is: 31,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,769.92 : 95,634.60 = 21,065.88 : x
  2. Step 2: Convert to fraction form
    63,769.92/95,634.60 = 21,065.88/x
  3. Step 3: Cross multiply
    63,769.92x = 95,634.60 × 21,065.88
  4. Step 4: Simplify right side
    63,769.92x = 2,014,627,007.45
  5. Step 5: Solve for x
    x = 2,014,627,007.45/63,769.92
  6. Step 6: Final answer
    x = 31,592.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.