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Finding the Third Proportional to 3,261.94 and 7,138.13

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Solution

The third proportional to 3,261.94 and 7,138.13 is: 15,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.94 : 7,138.13 = 7,138.13 : x
  2. Step 2: Convert to fraction form
    3,261.94/7,138.13 = 7,138.13/x
  3. Step 3: Cross multiply
    3,261.94x = 7,138.13 × 7,138.13
  4. Step 4: Simplify right side
    3,261.94x = 50,952,828.52
  5. Step 5: Solve for x
    x = 50,952,828.52/3,261.94
  6. Step 6: Final answer
    x = 15,620.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.