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Finding the Third Proportional to 1,396.13 and 3,371.06

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Solution

The third proportional to 1,396.13 and 3,371.06 is: 8,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.13 : 3,371.06 = 3,371.06 : x
  2. Step 2: Convert to fraction form
    1,396.13/3,371.06 = 3,371.06/x
  3. Step 3: Cross multiply
    1,396.13x = 3,371.06 × 3,371.06
  4. Step 4: Simplify right side
    1,396.13x = 11,364,062.38
  5. Step 5: Solve for x
    x = 11,364,062.38/1,396.13
  6. Step 6: Final answer
    x = 8,139.72

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.