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Finding the Fourth Proportional to 26,580.92, 39,871.69 and 11,381.44

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Solution

The fourth proportional to 26,580.92, 39,871.69 and 11,381.44 is: 17,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,580.92 : 39,871.69 = 11,381.44 : x
  2. Step 2: Convert to fraction form
    26,580.92/39,871.69 = 11,381.44/x
  3. Step 3: Cross multiply
    26,580.92x = 39,871.69 × 11,381.44
  4. Step 4: Simplify right side
    26,580.92x = 453,797,190.53
  5. Step 5: Solve for x
    x = 453,797,190.53/26,580.92
  6. Step 6: Final answer
    x = 17,072.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.