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Finding the Fourth Proportional to 63,602.60, 95,418.06 and 20,909.96

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Solution

The fourth proportional to 63,602.60, 95,418.06 and 20,909.96 is: 31,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,602.60 : 95,418.06 = 20,909.96 : x
  2. Step 2: Convert to fraction form
    63,602.60/95,418.06 = 20,909.96/x
  3. Step 3: Cross multiply
    63,602.60x = 95,418.06 × 20,909.96
  4. Step 4: Simplify right side
    63,602.60x = 1,995,187,817.88
  5. Step 5: Solve for x
    x = 1,995,187,817.88/63,602.60
  6. Step 6: Final answer
    x = 31,369.60

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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.