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Finding the Third Proportional to 98.44 and 213.75

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Solution

The third proportional to 98.44 and 213.75 is: 464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.44 : 213.75 = 213.75 : x
  2. Step 2: Convert to fraction form
    98.44/213.75 = 213.75/x
  3. Step 3: Cross multiply
    98.44x = 213.75 × 213.75
  4. Step 4: Simplify right side
    98.44x = 45,689.06
  5. Step 5: Solve for x
    x = 45,689.06/98.44
  6. Step 6: Final answer
    x = 464.14

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.