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Finding the Third Proportional to 192.06 and 418.38

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Solution

The third proportional to 192.06 and 418.38 is: 911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.06 : 418.38 = 418.38 : x
  2. Step 2: Convert to fraction form
    192.06/418.38 = 418.38/x
  3. Step 3: Cross multiply
    192.06x = 418.38 × 418.38
  4. Step 4: Simplify right side
    192.06x = 175,037.64
  5. Step 5: Solve for x
    x = 175,037.64/192.06
  6. Step 6: Final answer
    x = 911.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.