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Finding the Fourth Proportional to 6,760.62, 10,142.56 and 2,143.62

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Solution

The fourth proportional to 6,760.62, 10,142.56 and 2,143.62 is: 3,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.62 : 10,142.56 = 2,143.62 : x
  2. Step 2: Convert to fraction form
    6,760.62/10,142.56 = 2,143.62/x
  3. Step 3: Cross multiply
    6,760.62x = 10,142.56 × 2,143.62
  4. Step 4: Simplify right side
    6,760.62x = 21,741,794.47
  5. Step 5: Solve for x
    x = 21,741,794.47/6,760.62
  6. Step 6: Final answer
    x = 3,215.95

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1.5x scale

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.