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Finding the Fourth Proportional to 26,913.06, 40,375.98 and 9,144.90

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Solution

The fourth proportional to 26,913.06, 40,375.98 and 9,144.90 is: 13,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,913.06 : 40,375.98 = 9,144.90 : x
  2. Step 2: Convert to fraction form
    26,913.06/40,375.98 = 9,144.90/x
  3. Step 3: Cross multiply
    26,913.06x = 40,375.98 × 9,144.90
  4. Step 4: Simplify right side
    26,913.06x = 369,234,299.50
  5. Step 5: Solve for x
    x = 369,234,299.50/26,913.06
  6. Step 6: Final answer
    x = 13,719.52

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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.