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Finding the Third Proportional to 2,193 and 3,318

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Solution

The third proportional to 2,193 and 3,318 is: 5,020.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193 : 3,318 = 3,318 : x
  2. Step 2: Convert to fraction form
    2,193/3,318 = 3,318/x
  3. Step 3: Cross multiply
    2,193x = 3,318 × 3,318
  4. Step 4: Simplify right side
    2,193x = 11,009,124
  5. Step 5: Solve for x
    x = 11,009,124/2,193
  6. Step 6: Final answer
    x = 5,020.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.