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Finding the Fourth Proportional to 26,893.48, 40,351.25 and 11,892.68

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Solution

The fourth proportional to 26,893.48, 40,351.25 and 11,892.68 is: 17,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,893.48 : 40,351.25 = 11,892.68 : x
  2. Step 2: Convert to fraction form
    26,893.48/40,351.25 = 11,892.68/x
  3. Step 3: Cross multiply
    26,893.48x = 40,351.25 × 11,892.68
  4. Step 4: Simplify right side
    26,893.48x = 479,884,503.85
  5. Step 5: Solve for x
    x = 479,884,503.85/26,893.48
  6. Step 6: Final answer
    x = 17,843.90

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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.