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Finding the Third Proportional to 1,992 and 2,666

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Solution

The third proportional to 1,992 and 2,666 is: 3,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992 : 2,666 = 2,666 : x
  2. Step 2: Convert to fraction form
    1,992/2,666 = 2,666/x
  3. Step 3: Cross multiply
    1,992x = 2,666 × 2,666
  4. Step 4: Simplify right side
    1,992x = 7,107,556
  5. Step 5: Solve for x
    x = 7,107,556/1,992
  6. Step 6: Final answer
    x = 3,568.05

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.