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Finding the Third Proportional to 4,191.47 and 8,727.38

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Solution

The third proportional to 4,191.47 and 8,727.38 is: 18,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.47 : 8,727.38 = 8,727.38 : x
  2. Step 2: Convert to fraction form
    4,191.47/8,727.38 = 8,727.38/x
  3. Step 3: Cross multiply
    4,191.47x = 8,727.38 × 8,727.38
  4. Step 4: Simplify right side
    4,191.47x = 76,167,074.39
  5. Step 5: Solve for x
    x = 76,167,074.39/4,191.47
  6. Step 6: Final answer
    x = 18,171.93

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.