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Finding the Third Proportional to 1,396 and 2,926

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Solution

The third proportional to 1,396 and 2,926 is: 6,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396 : 2,926 = 2,926 : x
  2. Step 2: Convert to fraction form
    1,396/2,926 = 2,926/x
  3. Step 3: Cross multiply
    1,396x = 2,926 × 2,926
  4. Step 4: Simplify right side
    1,396x = 8,561,476
  5. Step 5: Solve for x
    x = 8,561,476/1,396
  6. Step 6: Final answer
    x = 6,132.86

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.