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Finding the Third Proportional to 2,822 and 7,247

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Solution

The third proportional to 2,822 and 7,247 is: 18,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822 : 7,247 = 7,247 : x
  2. Step 2: Convert to fraction form
    2,822/7,247 = 7,247/x
  3. Step 3: Cross multiply
    2,822x = 7,247 × 7,247
  4. Step 4: Simplify right side
    2,822x = 52,519,009
  5. Step 5: Solve for x
    x = 52,519,009/2,822
  6. Step 6: Final answer
    x = 18,610.56

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Why These Related Problems?

These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.