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Finding the Third Proportional to 16,728 and 22,206

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Solution

The third proportional to 16,728 and 22,206 is: 29,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728 : 22,206 = 22,206 : x
  2. Step 2: Convert to fraction form
    16,728/22,206 = 22,206/x
  3. Step 3: Cross multiply
    16,728x = 22,206 × 22,206
  4. Step 4: Simplify right side
    16,728x = 493,106,436
  5. Step 5: Solve for x
    x = 493,106,436/16,728
  6. Step 6: Final answer
    x = 29,477.91

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.