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Finding the Fourth Proportional to 26,763.90, 40,149.09 and 11,179.50

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Solution

The fourth proportional to 26,763.90, 40,149.09 and 11,179.50 is: 16,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,763.90 : 40,149.09 = 11,179.50 : x
  2. Step 2: Convert to fraction form
    26,763.90/40,149.09 = 11,179.50/x
  3. Step 3: Cross multiply
    26,763.90x = 40,149.09 × 11,179.50
  4. Step 4: Simplify right side
    26,763.90x = 448,846,751.66
  5. Step 5: Solve for x
    x = 448,846,751.66/26,763.90
  6. Step 6: Final answer
    x = 16,770.60

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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.