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Finding the Fourth Proportional to 8,371.48, 12,568.14 and 7,081.14

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Solution

The fourth proportional to 8,371.48, 12,568.14 and 7,081.14 is: 10,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.48 : 12,568.14 = 7,081.14 : x
  2. Step 2: Convert to fraction form
    8,371.48/12,568.14 = 7,081.14/x
  3. Step 3: Cross multiply
    8,371.48x = 12,568.14 × 7,081.14
  4. Step 4: Simplify right side
    8,371.48x = 88,996,758.88
  5. Step 5: Solve for x
    x = 88,996,758.88/8,371.48
  6. Step 6: Final answer
    x = 10,630.95

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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.