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Finding the Fourth Proportional to 26,546.44, 39,819.66 and 8,078.60

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Solution

The fourth proportional to 26,546.44, 39,819.66 and 8,078.60 is: 12,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,546.44 : 39,819.66 = 8,078.60 : x
  2. Step 2: Convert to fraction form
    26,546.44/39,819.66 = 8,078.60/x
  3. Step 3: Cross multiply
    26,546.44x = 39,819.66 × 8,078.60
  4. Step 4: Simplify right side
    26,546.44x = 321,687,105.28
  5. Step 5: Solve for x
    x = 321,687,105.28/26,546.44
  6. Step 6: Final answer
    x = 12,117.90

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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.