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Finding the Third Proportional to 13,728 and 29,544

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Solution

The third proportional to 13,728 and 29,544 is: 63,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728 : 29,544 = 29,544 : x
  2. Step 2: Convert to fraction form
    13,728/29,544 = 29,544/x
  3. Step 3: Cross multiply
    13,728x = 29,544 × 29,544
  4. Step 4: Simplify right side
    13,728x = 872,847,936
  5. Step 5: Solve for x
    x = 872,847,936/13,728
  6. Step 6: Final answer
    x = 63,581.58

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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.