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Finding the Third Proportional to 1,678 and 2,462

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Solution

The third proportional to 1,678 and 2,462 is: 3,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678 : 2,462 = 2,462 : x
  2. Step 2: Convert to fraction form
    1,678/2,462 = 2,462/x
  3. Step 3: Cross multiply
    1,678x = 2,462 × 2,462
  4. Step 4: Simplify right side
    1,678x = 6,061,444
  5. Step 5: Solve for x
    x = 6,061,444/1,678
  6. Step 6: Final answer
    x = 3,612.30

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.