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Finding the Fourth Proportional to 1,996.26, 2,993.94 and 763.24

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Solution

The fourth proportional to 1,996.26, 2,993.94 and 763.24 is: 1,144.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.26 : 2,993.94 = 763.24 : x
  2. Step 2: Convert to fraction form
    1,996.26/2,993.94 = 763.24/x
  3. Step 3: Cross multiply
    1,996.26x = 2,993.94 × 763.24
  4. Step 4: Simplify right side
    1,996.26x = 2,285,094.77
  5. Step 5: Solve for x
    x = 2,285,094.77/1,996.26
  6. Step 6: Final answer
    x = 1,144.69

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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.