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Finding the Third Proportional to 12,192 and 18,020

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Solution

The third proportional to 12,192 and 18,020 is: 26,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192 : 18,020 = 18,020 : x
  2. Step 2: Convert to fraction form
    12,192/18,020 = 18,020/x
  3. Step 3: Cross multiply
    12,192x = 18,020 × 18,020
  4. Step 4: Simplify right side
    12,192x = 324,720,400
  5. Step 5: Solve for x
    x = 324,720,400/12,192
  6. Step 6: Final answer
    x = 26,633.89

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.