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Finding the Third Proportional to 4,240.13 and 7,149.38

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Solution

The third proportional to 4,240.13 and 7,149.38 is: 12,054.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.13 : 7,149.38 = 7,149.38 : x
  2. Step 2: Convert to fraction form
    4,240.13/7,149.38 = 7,149.38/x
  3. Step 3: Cross multiply
    4,240.13x = 7,149.38 × 7,149.38
  4. Step 4: Simplify right side
    4,240.13x = 51,113,562.89
  5. Step 5: Solve for x
    x = 51,113,562.89/4,240.13
  6. Step 6: Final answer
    x = 12,054.73

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.