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Finding the Fourth Proportional to 8,562.13, 12,843.20 and 2,406.13

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Solution

The fourth proportional to 8,562.13, 12,843.20 and 2,406.13 is: 3,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.13 : 12,843.20 = 2,406.13 : x
  2. Step 2: Convert to fraction form
    8,562.13/12,843.20 = 2,406.13/x
  3. Step 3: Cross multiply
    8,562.13x = 12,843.20 × 2,406.13
  4. Step 4: Simplify right side
    8,562.13x = 30,902,408.82
  5. Step 5: Solve for x
    x = 30,902,408.82/8,562.13
  6. Step 6: Final answer
    x = 3,609.20

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Similar ratio
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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.