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Finding the Third Proportional to 18,274 and 39,836

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Solution

The third proportional to 18,274 and 39,836 is: 86,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274 : 39,836 = 39,836 : x
  2. Step 2: Convert to fraction form
    18,274/39,836 = 39,836/x
  3. Step 3: Cross multiply
    18,274x = 39,836 × 39,836
  4. Step 4: Simplify right side
    18,274x = 1,586,906,896
  5. Step 5: Solve for x
    x = 1,586,906,896/18,274
  6. Step 6: Final answer
    x = 86,839.60

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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.