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Finding the Third Proportional to 3,313.50 and 7,211.44

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Solution

The third proportional to 3,313.50 and 7,211.44 is: 15,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.50 : 7,211.44 = 7,211.44 : x
  2. Step 2: Convert to fraction form
    3,313.50/7,211.44 = 7,211.44/x
  3. Step 3: Cross multiply
    3,313.50x = 7,211.44 × 7,211.44
  4. Step 4: Simplify right side
    3,313.50x = 52,004,830.82
  5. Step 5: Solve for x
    x = 52,004,830.82/3,313.50
  6. Step 6: Final answer
    x = 15,694.83

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.