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Finding the Fourth Proportional to 26,761, 40,149.90 and 11,982.52

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Solution

The fourth proportional to 26,761, 40,149.90 and 11,982.52 is: 17,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,761 : 40,149.90 = 11,982.52 : x
  2. Step 2: Convert to fraction form
    26,761/40,149.90 = 11,982.52/x
  3. Step 3: Cross multiply
    26,761x = 40,149.90 × 11,982.52
  4. Step 4: Simplify right side
    26,761x = 481,096,979.75
  5. Step 5: Solve for x
    x = 481,096,979.75/26,761
  6. Step 6: Final answer
    x = 17,977.54

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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.