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Finding the Third Proportional to 5,408.50 and 8,214

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Solution

The third proportional to 5,408.50 and 8,214 is: 12,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.50 : 8,214 = 8,214 : x
  2. Step 2: Convert to fraction form
    5,408.50/8,214 = 8,214/x
  3. Step 3: Cross multiply
    5,408.50x = 8,214 × 8,214
  4. Step 4: Simplify right side
    5,408.50x = 67,469,796
  5. Step 5: Solve for x
    x = 67,469,796/5,408.50
  6. Step 6: Final answer
    x = 12,474.77

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.