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Finding the Third Proportional to 18,216 and 27,396

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Solution

The third proportional to 18,216 and 27,396 is: 41,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216 : 27,396 = 27,396 : x
  2. Step 2: Convert to fraction form
    18,216/27,396 = 27,396/x
  3. Step 3: Cross multiply
    18,216x = 27,396 × 27,396
  4. Step 4: Simplify right side
    18,216x = 750,540,816
  5. Step 5: Solve for x
    x = 750,540,816/18,216
  6. Step 6: Final answer
    x = 41,202.28

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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.