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Finding the Fourth Proportional to 67,082.18, 100,626.71 and 17,162.70

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Solution

The fourth proportional to 67,082.18, 100,626.71 and 17,162.70 is: 25,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,082.18 : 100,626.71 = 17,162.70 : x
  2. Step 2: Convert to fraction form
    67,082.18/100,626.71 = 17,162.70/x
  3. Step 3: Cross multiply
    67,082.18x = 100,626.71 × 17,162.70
  4. Step 4: Simplify right side
    67,082.18x = 1,727,026,138.58
  5. Step 5: Solve for x
    x = 1,727,026,138.58/67,082.18
  6. Step 6: Final answer
    x = 25,744.93

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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.