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Finding the Third Proportional to 1,396 and 3,071

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Solution

The third proportional to 1,396 and 3,071 is: 6,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396 : 3,071 = 3,071 : x
  2. Step 2: Convert to fraction form
    1,396/3,071 = 3,071/x
  3. Step 3: Cross multiply
    1,396x = 3,071 × 3,071
  4. Step 4: Simplify right side
    1,396x = 9,431,041
  5. Step 5: Solve for x
    x = 9,431,041/1,396
  6. Step 6: Final answer
    x = 6,755.76

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.