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Finding the Third Proportional to 211.92 and 450.84

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Solution

The third proportional to 211.92 and 450.84 is: 959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211.92 : 450.84 = 450.84 : x
  2. Step 2: Convert to fraction form
    211.92/450.84 = 450.84/x
  3. Step 3: Cross multiply
    211.92x = 450.84 × 450.84
  4. Step 4: Simplify right side
    211.92x = 203,260.09
  5. Step 5: Solve for x
    x = 203,260.09/211.92
  6. Step 6: Final answer
    x = 959.13

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.