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Finding the Third Proportional to 217.88 and 466.50

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Solution

The third proportional to 217.88 and 466.50 is: 998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    217.88 : 466.50 = 466.50 : x
  2. Step 2: Convert to fraction form
    217.88/466.50 = 466.50/x
  3. Step 3: Cross multiply
    217.88x = 466.50 × 466.50
  4. Step 4: Simplify right side
    217.88x = 217,622.25
  5. Step 5: Solve for x
    x = 217,622.25/217.88
  6. Step 6: Final answer
    x = 998.84

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.