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Finding the Third Proportional to 12,692 and 20,192

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Solution

The third proportional to 12,692 and 20,192 is: 32,123.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692 : 20,192 = 20,192 : x
  2. Step 2: Convert to fraction form
    12,692/20,192 = 20,192/x
  3. Step 3: Cross multiply
    12,692x = 20,192 × 20,192
  4. Step 4: Simplify right side
    12,692x = 407,716,864
  5. Step 5: Solve for x
    x = 407,716,864/12,692
  6. Step 6: Final answer
    x = 32,123.93

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.