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Finding the Third Proportional to 1,874 and 2,739

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Solution

The third proportional to 1,874 and 2,739 is: 4,003.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874 : 2,739 = 2,739 : x
  2. Step 2: Convert to fraction form
    1,874/2,739 = 2,739/x
  3. Step 3: Cross multiply
    1,874x = 2,739 × 2,739
  4. Step 4: Simplify right side
    1,874x = 7,502,121
  5. Step 5: Solve for x
    x = 7,502,121/1,874
  6. Step 6: Final answer
    x = 4,003.27

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.