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Finding the Third Proportional to 1,108 and 2,351

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Solution

The third proportional to 1,108 and 2,351 is: 4,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108 : 2,351 = 2,351 : x
  2. Step 2: Convert to fraction form
    1,108/2,351 = 2,351/x
  3. Step 3: Cross multiply
    1,108x = 2,351 × 2,351
  4. Step 4: Simplify right side
    1,108x = 5,527,201
  5. Step 5: Solve for x
    x = 5,527,201/1,108
  6. Step 6: Final answer
    x = 4,988.45

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.