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Finding the Fourth Proportional to 26,751.31, 40,126.86 and 8,031.26

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Solution

The fourth proportional to 26,751.31, 40,126.86 and 8,031.26 is: 12,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,751.31 : 40,126.86 = 8,031.26 : x
  2. Step 2: Convert to fraction form
    26,751.31/40,126.86 = 8,031.26/x
  3. Step 3: Cross multiply
    26,751.31x = 40,126.86 × 8,031.26
  4. Step 4: Simplify right side
    26,751.31x = 322,269,245.64
  5. Step 5: Solve for x
    x = 322,269,245.64/26,751.31
  6. Step 6: Final answer
    x = 12,046.86

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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.