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Finding the Third Proportional to 4,481 and 5,105

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Solution

The third proportional to 4,481 and 5,105 is: 5,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481 : 5,105 = 5,105 : x
  2. Step 2: Convert to fraction form
    4,481/5,105 = 5,105/x
  3. Step 3: Cross multiply
    4,481x = 5,105 × 5,105
  4. Step 4: Simplify right side
    4,481x = 26,061,025
  5. Step 5: Solve for x
    x = 26,061,025/4,481
  6. Step 6: Final answer
    x = 5,815.89

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.