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Finding the Fourth Proportional to 26,676.52, 40,013.92 and 7,956.70

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Solution

The fourth proportional to 26,676.52, 40,013.92 and 7,956.70 is: 11,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,676.52 : 40,013.92 = 7,956.70 : x
  2. Step 2: Convert to fraction form
    26,676.52/40,013.92 = 7,956.70/x
  3. Step 3: Cross multiply
    26,676.52x = 40,013.92 × 7,956.70
  4. Step 4: Simplify right side
    26,676.52x = 318,378,757.26
  5. Step 5: Solve for x
    x = 318,378,757.26/26,676.52
  6. Step 6: Final answer
    x = 11,934.79

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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.