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Finding the Third Proportional to 5,386 and 7,413

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Solution

The third proportional to 5,386 and 7,413 is: 10,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386 : 7,413 = 7,413 : x
  2. Step 2: Convert to fraction form
    5,386/7,413 = 7,413/x
  3. Step 3: Cross multiply
    5,386x = 7,413 × 7,413
  4. Step 4: Simplify right side
    5,386x = 54,952,569
  5. Step 5: Solve for x
    x = 54,952,569/5,386
  6. Step 6: Final answer
    x = 10,202.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.