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Finding the Fourth Proportional to 26,917.31, 40,382.48 and 8,449.31

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Solution

The fourth proportional to 26,917.31, 40,382.48 and 8,449.31 is: 12,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,917.31 : 40,382.48 = 8,449.31 : x
  2. Step 2: Convert to fraction form
    26,917.31/40,382.48 = 8,449.31/x
  3. Step 3: Cross multiply
    26,917.31x = 40,382.48 × 8,449.31
  4. Step 4: Simplify right side
    26,917.31x = 341,204,214.17
  5. Step 5: Solve for x
    x = 341,204,214.17/26,917.31
  6. Step 6: Final answer
    x = 12,676.01

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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.