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Finding the Third Proportional to 447.94 and 982.88

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Solution

The third proportional to 447.94 and 982.88 is: 2,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.94 : 982.88 = 982.88 : x
  2. Step 2: Convert to fraction form
    447.94/982.88 = 982.88/x
  3. Step 3: Cross multiply
    447.94x = 982.88 × 982.88
  4. Step 4: Simplify right side
    447.94x = 966,043.27
  5. Step 5: Solve for x
    x = 966,043.27/447.94
  6. Step 6: Final answer
    x = 2,156.65

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.