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Finding the Third Proportional to 839 and 1,793

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Solution

The third proportional to 839 and 1,793 is: 3,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    839 : 1,793 = 1,793 : x
  2. Step 2: Convert to fraction form
    839/1,793 = 1,793/x
  3. Step 3: Cross multiply
    839x = 1,793 × 1,793
  4. Step 4: Simplify right side
    839x = 3,214,849
  5. Step 5: Solve for x
    x = 3,214,849/839
  6. Step 6: Final answer
    x = 3,831.76

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.