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Finding the Fourth Proportional to 52,508.96, 78,773.69 and 16,979.09

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Solution

The fourth proportional to 52,508.96, 78,773.69 and 16,979.09 is: 25,471.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,508.96 : 78,773.69 = 16,979.09 : x
  2. Step 2: Convert to fraction form
    52,508.96/78,773.69 = 16,979.09/x
  3. Step 3: Cross multiply
    52,508.96x = 78,773.69 × 16,979.09
  4. Step 4: Simplify right side
    52,508.96x = 1,337,505,837.62
  5. Step 5: Solve for x
    x = 1,337,505,837.62/52,508.96
  6. Step 6: Final answer
    x = 25,471.96

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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.