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Finding the Fourth Proportional to 71,379.15, 107,027.22 and 27,009.33

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Solution

The fourth proportional to 71,379.15, 107,027.22 and 27,009.33 is: 40,498.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,379.15 : 107,027.22 = 27,009.33 : x
  2. Step 2: Convert to fraction form
    71,379.15/107,027.22 = 27,009.33/x
  3. Step 3: Cross multiply
    71,379.15x = 107,027.22 × 27,009.33
  4. Step 4: Simplify right side
    71,379.15x = 2,890,733,503.96
  5. Step 5: Solve for x
    x = 2,890,733,503.96/71,379.15
  6. Step 6: Final answer
    x = 40,498.29

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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.