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Finding the Third Proportional to 4,687 and 5,497

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Solution

The third proportional to 4,687 and 5,497 is: 6,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687 : 5,497 = 5,497 : x
  2. Step 2: Convert to fraction form
    4,687/5,497 = 5,497/x
  3. Step 3: Cross multiply
    4,687x = 5,497 × 5,497
  4. Step 4: Simplify right side
    4,687x = 30,217,009
  5. Step 5: Solve for x
    x = 30,217,009/4,687
  6. Step 6: Final answer
    x = 6,446.98

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.