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Finding the Third Proportional to 2,891 and 4,294

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Solution

The third proportional to 2,891 and 4,294 is: 6,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891 : 4,294 = 4,294 : x
  2. Step 2: Convert to fraction form
    2,891/4,294 = 4,294/x
  3. Step 3: Cross multiply
    2,891x = 4,294 × 4,294
  4. Step 4: Simplify right side
    2,891x = 18,438,436
  5. Step 5: Solve for x
    x = 18,438,436/2,891
  6. Step 6: Final answer
    x = 6,377.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.