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Finding the Third Proportional to 441.28 and 969.47

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Solution

The third proportional to 441.28 and 969.47 is: 2,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.28 : 969.47 = 969.47 : x
  2. Step 2: Convert to fraction form
    441.28/969.47 = 969.47/x
  3. Step 3: Cross multiply
    441.28x = 969.47 × 969.47
  4. Step 4: Simplify right side
    441.28x = 939,869.66
  5. Step 5: Solve for x
    x = 939,869.66/441.28
  6. Step 6: Final answer
    x = 2,129.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.