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Finding the Third Proportional to 2,188 and 4,727

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Solution

The third proportional to 2,188 and 4,727 is: 10,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188 : 4,727 = 4,727 : x
  2. Step 2: Convert to fraction form
    2,188/4,727 = 4,727/x
  3. Step 3: Cross multiply
    2,188x = 4,727 × 4,727
  4. Step 4: Simplify right side
    2,188x = 22,344,529
  5. Step 5: Solve for x
    x = 22,344,529/2,188
  6. Step 6: Final answer
    x = 10,212.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.