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Finding the Fourth Proportional to 63,886.05, 95,839.20 and 21,770.10

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Solution

The fourth proportional to 63,886.05, 95,839.20 and 21,770.10 is: 32,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,886.05 : 95,839.20 = 21,770.10 : x
  2. Step 2: Convert to fraction form
    63,886.05/95,839.20 = 21,770.10/x
  3. Step 3: Cross multiply
    63,886.05x = 95,839.20 × 21,770.10
  4. Step 4: Simplify right side
    63,886.05x = 2,086,428,967.92
  5. Step 5: Solve for x
    x = 2,086,428,967.92/63,886.05
  6. Step 6: Final answer
    x = 32,658.60

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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.