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Finding the Third Proportional to 631 and 1,462

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Solution

The third proportional to 631 and 1,462 is: 3,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    631 : 1,462 = 1,462 : x
  2. Step 2: Convert to fraction form
    631/1,462 = 1,462/x
  3. Step 3: Cross multiply
    631x = 1,462 × 1,462
  4. Step 4: Simplify right side
    631x = 2,137,444
  5. Step 5: Solve for x
    x = 2,137,444/631
  6. Step 6: Final answer
    x = 3,387.39

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.