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Finding the Third Proportional to 201.09 and 441.56

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Solution

The third proportional to 201.09 and 441.56 is: 969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.09 : 441.56 = 441.56 : x
  2. Step 2: Convert to fraction form
    201.09/441.56 = 441.56/x
  3. Step 3: Cross multiply
    201.09x = 441.56 × 441.56
  4. Step 4: Simplify right side
    201.09x = 194,977.44
  5. Step 5: Solve for x
    x = 194,977.44/201.09
  6. Step 6: Final answer
    x = 969.58

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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.