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Finding the Third Proportional to 4,262 and 6,687

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Solution

The third proportional to 4,262 and 6,687 is: 10,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262 : 6,687 = 6,687 : x
  2. Step 2: Convert to fraction form
    4,262/6,687 = 6,687/x
  3. Step 3: Cross multiply
    4,262x = 6,687 × 6,687
  4. Step 4: Simplify right side
    4,262x = 44,715,969
  5. Step 5: Solve for x
    x = 44,715,969/4,262
  6. Step 6: Final answer
    x = 10,491.78

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.