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Finding the Fourth Proportional to 2,993.75, 4,490.62 and 1,433.38

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Solution

The fourth proportional to 2,993.75, 4,490.62 and 1,433.38 is: 2,150.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.75 : 4,490.62 = 1,433.38 : x
  2. Step 2: Convert to fraction form
    2,993.75/4,490.62 = 1,433.38/x
  3. Step 3: Cross multiply
    2,993.75x = 4,490.62 × 1,433.38
  4. Step 4: Simplify right side
    2,993.75x = 6,436,764.90
  5. Step 5: Solve for x
    x = 6,436,764.90/2,993.75
  6. Step 6: Final answer
    x = 2,150.07

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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.