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Finding the Fourth Proportional to 26,576.87, 39,862.86 and 8,108.87

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Solution

The fourth proportional to 26,576.87, 39,862.86 and 8,108.87 is: 12,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,576.87 : 39,862.86 = 8,108.87 : x
  2. Step 2: Convert to fraction form
    26,576.87/39,862.86 = 8,108.87/x
  3. Step 3: Cross multiply
    26,576.87x = 39,862.86 × 8,108.87
  4. Step 4: Simplify right side
    26,576.87x = 323,242,749.57
  5. Step 5: Solve for x
    x = 323,242,749.57/26,576.87
  6. Step 6: Final answer
    x = 12,162.56

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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.