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Finding the Third Proportional to 19,728 and 43,452

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Solution

The third proportional to 19,728 and 43,452 is: 95,705.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728 : 43,452 = 43,452 : x
  2. Step 2: Convert to fraction form
    19,728/43,452 = 43,452/x
  3. Step 3: Cross multiply
    19,728x = 43,452 × 43,452
  4. Step 4: Simplify right side
    19,728x = 1,888,076,304
  5. Step 5: Solve for x
    x = 1,888,076,304/19,728
  6. Step 6: Final answer
    x = 95,705.41

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.