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Finding the Third Proportional to 214.75 and 323

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Solution

The third proportional to 214.75 and 323 is: 485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.75 : 323 = 323 : x
  2. Step 2: Convert to fraction form
    214.75/323 = 323/x
  3. Step 3: Cross multiply
    214.75x = 323 × 323
  4. Step 4: Simplify right side
    214.75x = 104,329
  5. Step 5: Solve for x
    x = 104,329/214.75
  6. Step 6: Final answer
    x = 485.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.