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Finding the Third Proportional to 908.72 and 2,199.66

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Solution

The third proportional to 908.72 and 2,199.66 is: 5,324.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    908.72 : 2,199.66 = 2,199.66 : x
  2. Step 2: Convert to fraction form
    908.72/2,199.66 = 2,199.66/x
  3. Step 3: Cross multiply
    908.72x = 2,199.66 × 2,199.66
  4. Step 4: Simplify right side
    908.72x = 4,838,487.62
  5. Step 5: Solve for x
    x = 4,838,487.62/908.72
  6. Step 6: Final answer
    x = 5,324.52

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.