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Finding the Third Proportional to 2,828 and 4,413

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Solution

The third proportional to 2,828 and 4,413 is: 6,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828 : 4,413 = 4,413 : x
  2. Step 2: Convert to fraction form
    2,828/4,413 = 4,413/x
  3. Step 3: Cross multiply
    2,828x = 4,413 × 4,413
  4. Step 4: Simplify right side
    2,828x = 19,474,569
  5. Step 5: Solve for x
    x = 19,474,569/2,828
  6. Step 6: Final answer
    x = 6,886.34

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.