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Finding the Fourth Proportional to 69,063.85, 103,572.22 and 26,940.61

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Solution

The fourth proportional to 69,063.85, 103,572.22 and 26,940.61 is: 40,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,063.85 : 103,572.22 = 26,940.61 : x
  2. Step 2: Convert to fraction form
    69,063.85/103,572.22 = 26,940.61/x
  3. Step 3: Cross multiply
    69,063.85x = 103,572.22 × 26,940.61
  4. Step 4: Simplify right side
    69,063.85x = 2,790,298,560.60
  5. Step 5: Solve for x
    x = 2,790,298,560.60/69,063.85
  6. Step 6: Final answer
    x = 40,401.72

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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.