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Finding the Third Proportional to 214.75 and 461.75

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Solution

The third proportional to 214.75 and 461.75 is: 992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.75 : 461.75 = 461.75 : x
  2. Step 2: Convert to fraction form
    214.75/461.75 = 461.75/x
  3. Step 3: Cross multiply
    214.75x = 461.75 × 461.75
  4. Step 4: Simplify right side
    214.75x = 213,213.06
  5. Step 5: Solve for x
    x = 213,213.06/214.75
  6. Step 6: Final answer
    x = 992.84

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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.