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Finding the Third Proportional to 18,432 and 39,104

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Solution

The third proportional to 18,432 and 39,104 is: 82,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432 : 39,104 = 39,104 : x
  2. Step 2: Convert to fraction form
    18,432/39,104 = 39,104/x
  3. Step 3: Cross multiply
    18,432x = 39,104 × 39,104
  4. Step 4: Simplify right side
    18,432x = 1,529,122,816
  5. Step 5: Solve for x
    x = 1,529,122,816/18,432
  6. Step 6: Final answer
    x = 82,960.22

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.