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Finding the Third Proportional to 12,402 and 27,031

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Solution

The third proportional to 12,402 and 27,031 is: 58,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402 : 27,031 = 27,031 : x
  2. Step 2: Convert to fraction form
    12,402/27,031 = 27,031/x
  3. Step 3: Cross multiply
    12,402x = 27,031 × 27,031
  4. Step 4: Simplify right side
    12,402x = 730,674,961
  5. Step 5: Solve for x
    x = 730,674,961/12,402
  6. Step 6: Final answer
    x = 58,915.90

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.