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Finding the Third Proportional to 966.66 and 2,115.56

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Solution

The third proportional to 966.66 and 2,115.56 is: 4,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.66 : 2,115.56 = 2,115.56 : x
  2. Step 2: Convert to fraction form
    966.66/2,115.56 = 2,115.56/x
  3. Step 3: Cross multiply
    966.66x = 2,115.56 × 2,115.56
  4. Step 4: Simplify right side
    966.66x = 4,475,604.69
  5. Step 5: Solve for x
    x = 4,475,604.69/966.66
  6. Step 6: Final answer
    x = 4,629.99

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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.