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Finding the Third Proportional to 4,727 and 9,759

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Solution

The third proportional to 4,727 and 9,759 is: 20,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,727 : 9,759 = 9,759 : x
  2. Step 2: Convert to fraction form
    4,727/9,759 = 9,759/x
  3. Step 3: Cross multiply
    4,727x = 9,759 × 9,759
  4. Step 4: Simplify right side
    4,727x = 95,238,081
  5. Step 5: Solve for x
    x = 95,238,081/4,727
  6. Step 6: Final answer
    x = 20,147.68

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.