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Finding the Third Proportional to 1,834 and 3,892

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Solution

The third proportional to 1,834 and 3,892 is: 8,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834 : 3,892 = 3,892 : x
  2. Step 2: Convert to fraction form
    1,834/3,892 = 3,892/x
  3. Step 3: Cross multiply
    1,834x = 3,892 × 3,892
  4. Step 4: Simplify right side
    1,834x = 15,147,664
  5. Step 5: Solve for x
    x = 15,147,664/1,834
  6. Step 6: Final answer
    x = 8,259.36

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.