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Finding the Third Proportional to 5,180 and 8,262

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Solution

The third proportional to 5,180 and 8,262 is: 13,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180 : 8,262 = 8,262 : x
  2. Step 2: Convert to fraction form
    5,180/8,262 = 8,262/x
  3. Step 3: Cross multiply
    5,180x = 8,262 × 8,262
  4. Step 4: Simplify right side
    5,180x = 68,260,644
  5. Step 5: Solve for x
    x = 68,260,644/5,180
  6. Step 6: Final answer
    x = 13,177.73

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.