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Finding the Third Proportional to 12,685 and 27,962

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Solution

The third proportional to 12,685 and 27,962 is: 61,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685 : 27,962 = 27,962 : x
  2. Step 2: Convert to fraction form
    12,685/27,962 = 27,962/x
  3. Step 3: Cross multiply
    12,685x = 27,962 × 27,962
  4. Step 4: Simplify right side
    12,685x = 781,873,444
  5. Step 5: Solve for x
    x = 781,873,444/12,685
  6. Step 6: Final answer
    x = 61,637.64

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.