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Finding the Third Proportional to 4,390.88 and 9,183.38

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Solution

The third proportional to 4,390.88 and 9,183.38 is: 19,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.88 : 9,183.38 = 9,183.38 : x
  2. Step 2: Convert to fraction form
    4,390.88/9,183.38 = 9,183.38/x
  3. Step 3: Cross multiply
    4,390.88x = 9,183.38 × 9,183.38
  4. Step 4: Simplify right side
    4,390.88x = 84,334,376.39
  5. Step 5: Solve for x
    x = 84,334,376.39/4,390.88
  6. Step 6: Final answer
    x = 19,206.74

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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.