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Finding the Third Proportional to 13,940 and 30,652

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Solution

The third proportional to 13,940 and 30,652 is: 67,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940 : 30,652 = 30,652 : x
  2. Step 2: Convert to fraction form
    13,940/30,652 = 30,652/x
  3. Step 3: Cross multiply
    13,940x = 30,652 × 30,652
  4. Step 4: Simplify right side
    13,940x = 939,545,104
  5. Step 5: Solve for x
    x = 939,545,104/13,940
  6. Step 6: Final answer
    x = 67,399.22

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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.