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Finding the Fourth Proportional to 40,640.70, 60,986.96 and 17,267.13

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Solution

The fourth proportional to 40,640.70, 60,986.96 and 17,267.13 is: 25,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,640.70 : 60,986.96 = 17,267.13 : x
  2. Step 2: Convert to fraction form
    40,640.70/60,986.96 = 17,267.13/x
  3. Step 3: Cross multiply
    40,640.70x = 60,986.96 × 17,267.13
  4. Step 4: Simplify right side
    40,640.70x = 1,053,069,766.62
  5. Step 5: Solve for x
    x = 1,053,069,766.62/40,640.70
  6. Step 6: Final answer
    x = 25,911.70

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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.