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Finding the Third Proportional to 12,402 and 18,627

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Solution

The third proportional to 12,402 and 18,627 is: 27,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402 : 18,627 = 18,627 : x
  2. Step 2: Convert to fraction form
    12,402/18,627 = 18,627/x
  3. Step 3: Cross multiply
    12,402x = 18,627 × 18,627
  4. Step 4: Simplify right side
    12,402x = 346,965,129
  5. Step 5: Solve for x
    x = 346,965,129/12,402
  6. Step 6: Final answer
    x = 27,976.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.