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Finding the Fourth Proportional to 63,665.76, 87,860.65 and 36,805.89

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Solution

The fourth proportional to 63,665.76, 87,860.65 and 36,805.89 is: 50,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,665.76 : 87,860.65 = 36,805.89 : x
  2. Step 2: Convert to fraction form
    63,665.76/87,860.65 = 36,805.89/x
  3. Step 3: Cross multiply
    63,665.76x = 87,860.65 × 36,805.89
  4. Step 4: Simplify right side
    63,665.76x = 3,233,789,725.70
  5. Step 5: Solve for x
    x = 3,233,789,725.70/63,665.76
  6. Step 6: Final answer
    x = 50,793.23

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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.