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Finding the Fourth Proportional to 3,183.73, 4,776.23 and 992.37

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Solution

The fourth proportional to 3,183.73, 4,776.23 and 992.37 is: 1,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.73 : 4,776.23 = 992.37 : x
  2. Step 2: Convert to fraction form
    3,183.73/4,776.23 = 992.37/x
  3. Step 3: Cross multiply
    3,183.73x = 4,776.23 × 992.37
  4. Step 4: Simplify right side
    3,183.73x = 4,739,787.37
  5. Step 5: Solve for x
    x = 4,739,787.37/3,183.73
  6. Step 6: Final answer
    x = 1,488.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.