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Finding the Third Proportional to 3,357 and 7,201

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Solution

The third proportional to 3,357 and 7,201 is: 15,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357 : 7,201 = 7,201 : x
  2. Step 2: Convert to fraction form
    3,357/7,201 = 7,201/x
  3. Step 3: Cross multiply
    3,357x = 7,201 × 7,201
  4. Step 4: Simplify right side
    3,357x = 51,854,401
  5. Step 5: Solve for x
    x = 51,854,401/3,357
  6. Step 6: Final answer
    x = 15,446.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.