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Finding the Third Proportional to 3,245 and 5,223

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Solution

The third proportional to 3,245 and 5,223 is: 8,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245 : 5,223 = 5,223 : x
  2. Step 2: Convert to fraction form
    3,245/5,223 = 5,223/x
  3. Step 3: Cross multiply
    3,245x = 5,223 × 5,223
  4. Step 4: Simplify right side
    3,245x = 27,279,729
  5. Step 5: Solve for x
    x = 27,279,729/3,245
  6. Step 6: Final answer
    x = 8,406.70

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.