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Finding the Third Proportional to 16,880 and 27,120

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Solution

The third proportional to 16,880 and 27,120 is: 43,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880 : 27,120 = 27,120 : x
  2. Step 2: Convert to fraction form
    16,880/27,120 = 27,120/x
  3. Step 3: Cross multiply
    16,880x = 27,120 × 27,120
  4. Step 4: Simplify right side
    16,880x = 735,494,400
  5. Step 5: Solve for x
    x = 735,494,400/16,880
  6. Step 6: Final answer
    x = 43,571.94

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.