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Finding the Third Proportional to 214.25 and 447.50

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Solution

The third proportional to 214.25 and 447.50 is: 934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.25 : 447.50 = 447.50 : x
  2. Step 2: Convert to fraction form
    214.25/447.50 = 447.50/x
  3. Step 3: Cross multiply
    214.25x = 447.50 × 447.50
  4. Step 4: Simplify right side
    214.25x = 200,256.25
  5. Step 5: Solve for x
    x = 200,256.25/214.25
  6. Step 6: Final answer
    x = 934.68

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.