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Finding the Third Proportional to 1,367 and 2,080

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Solution

The third proportional to 1,367 and 2,080 is: 3,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367 : 2,080 = 2,080 : x
  2. Step 2: Convert to fraction form
    1,367/2,080 = 2,080/x
  3. Step 3: Cross multiply
    1,367x = 2,080 × 2,080
  4. Step 4: Simplify right side
    1,367x = 4,326,400
  5. Step 5: Solve for x
    x = 4,326,400/1,367
  6. Step 6: Final answer
    x = 3,164.89

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.