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Finding the Third Proportional to 2,940.75 and 5,230.13

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Solution

The third proportional to 2,940.75 and 5,230.13 is: 9,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.75 : 5,230.13 = 5,230.13 : x
  2. Step 2: Convert to fraction form
    2,940.75/5,230.13 = 5,230.13/x
  3. Step 3: Cross multiply
    2,940.75x = 5,230.13 × 5,230.13
  4. Step 4: Simplify right side
    2,940.75x = 27,354,207.52
  5. Step 5: Solve for x
    x = 27,354,207.52/2,940.75
  6. Step 6: Final answer
    x = 9,301.78

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.