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Finding the Third Proportional to 5,362 and 7,218

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Solution

The third proportional to 5,362 and 7,218 is: 9,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362 : 7,218 = 7,218 : x
  2. Step 2: Convert to fraction form
    5,362/7,218 = 7,218/x
  3. Step 3: Cross multiply
    5,362x = 7,218 × 7,218
  4. Step 4: Simplify right side
    5,362x = 52,099,524
  5. Step 5: Solve for x
    x = 52,099,524/5,362
  6. Step 6: Final answer
    x = 9,716.43

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.