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Finding the Fourth Proportional to 26,978.59, 40,450.33 and 11,179.27

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Solution

The fourth proportional to 26,978.59, 40,450.33 and 11,179.27 is: 16,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,978.59 : 40,450.33 = 11,179.27 : x
  2. Step 2: Convert to fraction form
    26,978.59/40,450.33 = 11,179.27/x
  3. Step 3: Cross multiply
    26,978.59x = 40,450.33 × 11,179.27
  4. Step 4: Simplify right side
    26,978.59x = 452,205,160.66
  5. Step 5: Solve for x
    x = 452,205,160.66/26,978.59
  6. Step 6: Final answer
    x = 16,761.63

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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.