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Finding the Fourth Proportional to 8,226.70, 12,337.13 and 2,679.01

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Solution

The fourth proportional to 8,226.70, 12,337.13 and 2,679.01 is: 4,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.70 : 12,337.13 = 2,679.01 : x
  2. Step 2: Convert to fraction form
    8,226.70/12,337.13 = 2,679.01/x
  3. Step 3: Cross multiply
    8,226.70x = 12,337.13 × 2,679.01
  4. Step 4: Simplify right side
    8,226.70x = 33,051,294.64
  5. Step 5: Solve for x
    x = 33,051,294.64/8,226.70
  6. Step 6: Final answer
    x = 4,017.56

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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.