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Finding the Third Proportional to 18,769 and 20,794

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Solution

The third proportional to 18,769 and 20,794 is: 23,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769 : 20,794 = 20,794 : x
  2. Step 2: Convert to fraction form
    18,769/20,794 = 20,794/x
  3. Step 3: Cross multiply
    18,769x = 20,794 × 20,794
  4. Step 4: Simplify right side
    18,769x = 432,390,436
  5. Step 5: Solve for x
    x = 432,390,436/18,769
  6. Step 6: Final answer
    x = 23,037.48

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.