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Finding the Third Proportional to 867 and 2,082

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Solution

The third proportional to 867 and 2,082 is: 4,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    867 : 2,082 = 2,082 : x
  2. Step 2: Convert to fraction form
    867/2,082 = 2,082/x
  3. Step 3: Cross multiply
    867x = 2,082 × 2,082
  4. Step 4: Simplify right side
    867x = 4,334,724
  5. Step 5: Solve for x
    x = 4,334,724/867
  6. Step 6: Final answer
    x = 4,999.68

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.