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Finding the Fourth Proportional to 52,636.72, 78,996.98 and 27,691.32

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Solution

The fourth proportional to 52,636.72, 78,996.98 and 27,691.32 is: 41,559.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,636.72 : 78,996.98 = 27,691.32 : x
  2. Step 2: Convert to fraction form
    52,636.72/78,996.98 = 27,691.32/x
  3. Step 3: Cross multiply
    52,636.72x = 78,996.98 × 27,691.32
  4. Step 4: Simplify right side
    52,636.72x = 2,187,530,652.21
  5. Step 5: Solve for x
    x = 2,187,530,652.21/52,636.72
  6. Step 6: Final answer
    x = 41,559.02

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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.