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Finding the Fourth Proportional to 26,652.96, 39,981.36 and 7,676.82

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Solution

The fourth proportional to 26,652.96, 39,981.36 and 7,676.82 is: 11,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,652.96 : 39,981.36 = 7,676.82 : x
  2. Step 2: Convert to fraction form
    26,652.96/39,981.36 = 7,676.82/x
  3. Step 3: Cross multiply
    26,652.96x = 39,981.36 × 7,676.82
  4. Step 4: Simplify right side
    26,652.96x = 306,929,704.08
  5. Step 5: Solve for x
    x = 306,929,704.08/26,652.96
  6. Step 6: Final answer
    x = 11,515.78

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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.