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Finding the Fourth Proportional to 1,995.94, 2,993.46 and 679.48

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Solution

The fourth proportional to 1,995.94, 2,993.46 and 679.48 is: 1,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.94 : 2,993.46 = 679.48 : x
  2. Step 2: Convert to fraction form
    1,995.94/2,993.46 = 679.48/x
  3. Step 3: Cross multiply
    1,995.94x = 2,993.46 × 679.48
  4. Step 4: Simplify right side
    1,995.94x = 2,033,996.20
  5. Step 5: Solve for x
    x = 2,033,996.20/1,995.94
  6. Step 6: Final answer
    x = 1,019.07

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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.