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Finding the Third Proportional to 16,418 and 36,116

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Solution

The third proportional to 16,418 and 36,116 is: 79,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,418 : 36,116 = 36,116 : x
  2. Step 2: Convert to fraction form
    16,418/36,116 = 36,116/x
  3. Step 3: Cross multiply
    16,418x = 36,116 × 36,116
  4. Step 4: Simplify right side
    16,418x = 1,304,365,456
  5. Step 5: Solve for x
    x = 1,304,365,456/16,418
  6. Step 6: Final answer
    x = 79,447.28

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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.