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Finding the Third Proportional to 1,401 and 2,721

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Solution

The third proportional to 1,401 and 2,721 is: 5,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401 : 2,721 = 2,721 : x
  2. Step 2: Convert to fraction form
    1,401/2,721 = 2,721/x
  3. Step 3: Cross multiply
    1,401x = 2,721 × 2,721
  4. Step 4: Simplify right side
    1,401x = 7,403,841
  5. Step 5: Solve for x
    x = 7,403,841/1,401
  6. Step 6: Final answer
    x = 5,284.68

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.