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Finding the Third Proportional to 202.75 and 484.38

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Solution

The third proportional to 202.75 and 484.38 is: 1,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.75 : 484.38 = 484.38 : x
  2. Step 2: Convert to fraction form
    202.75/484.38 = 484.38/x
  3. Step 3: Cross multiply
    202.75x = 484.38 × 484.38
  4. Step 4: Simplify right side
    202.75x = 234,619.14
  5. Step 5: Solve for x
    x = 234,619.14/202.75
  6. Step 6: Final answer
    x = 1,157.18

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.