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Finding the Fourth Proportional to 66,929.10, 100,393.65 and 27,465.90

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Solution

The fourth proportional to 66,929.10, 100,393.65 and 27,465.90 is: 41,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929.10 : 100,393.65 = 27,465.90 : x
  2. Step 2: Convert to fraction form
    66,929.10/100,393.65 = 27,465.90/x
  3. Step 3: Cross multiply
    66,929.10x = 100,393.65 × 27,465.90
  4. Step 4: Simplify right side
    66,929.10x = 2,757,401,951.54
  5. Step 5: Solve for x
    x = 2,757,401,951.54/66,929.10
  6. Step 6: Final answer
    x = 41,198.85

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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.