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Finding the Third Proportional to 18,188 and 27,212

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Solution

The third proportional to 18,188 and 27,212 is: 40,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188 : 27,212 = 27,212 : x
  2. Step 2: Convert to fraction form
    18,188/27,212 = 27,212/x
  3. Step 3: Cross multiply
    18,188x = 27,212 × 27,212
  4. Step 4: Simplify right side
    18,188x = 740,492,944
  5. Step 5: Solve for x
    x = 740,492,944/18,188
  6. Step 6: Final answer
    x = 40,713.27

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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.