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Finding the Third Proportional to 4,239.13 and 6,571.69

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Solution

The third proportional to 4,239.13 and 6,571.69 is: 10,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.13 : 6,571.69 = 6,571.69 : x
  2. Step 2: Convert to fraction form
    4,239.13/6,571.69 = 6,571.69/x
  3. Step 3: Cross multiply
    4,239.13x = 6,571.69 × 6,571.69
  4. Step 4: Simplify right side
    4,239.13x = 43,187,076.60
  5. Step 5: Solve for x
    x = 43,187,076.60/4,239.13
  6. Step 6: Final answer
    x = 10,187.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.