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Finding the Fourth Proportional to 2,391.97, 3,299.99 and 1,763.99

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Solution

The fourth proportional to 2,391.97, 3,299.99 and 1,763.99 is: 2,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.97 : 3,299.99 = 1,763.99 : x
  2. Step 2: Convert to fraction form
    2,391.97/3,299.99 = 1,763.99/x
  3. Step 3: Cross multiply
    2,391.97x = 3,299.99 × 1,763.99
  4. Step 4: Simplify right side
    2,391.97x = 5,821,149.36
  5. Step 5: Solve for x
    x = 5,821,149.36/2,391.97
  6. Step 6: Final answer
    x = 2,433.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.