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Finding the Third Proportional to 2,120.75 and 3,244.13

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Solution

The third proportional to 2,120.75 and 3,244.13 is: 4,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.75 : 3,244.13 = 3,244.13 : x
  2. Step 2: Convert to fraction form
    2,120.75/3,244.13 = 3,244.13/x
  3. Step 3: Cross multiply
    2,120.75x = 3,244.13 × 3,244.13
  4. Step 4: Simplify right side
    2,120.75x = 10,524,347.02
  5. Step 5: Solve for x
    x = 10,524,347.02/2,120.75
  6. Step 6: Final answer
    x = 4,962.56

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.