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Finding the Third Proportional to 3,784 and 8,144

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Solution

The third proportional to 3,784 and 8,144 is: 17,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784 : 8,144 = 8,144 : x
  2. Step 2: Convert to fraction form
    3,784/8,144 = 8,144/x
  3. Step 3: Cross multiply
    3,784x = 8,144 × 8,144
  4. Step 4: Simplify right side
    3,784x = 66,324,736
  5. Step 5: Solve for x
    x = 66,324,736/3,784
  6. Step 6: Final answer
    x = 17,527.68

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.