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Finding the Fourth Proportional to 1,995.48, 2,993.22 and 696.96

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Solution

The fourth proportional to 1,995.48, 2,993.22 and 696.96 is: 1,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.48 : 2,993.22 = 696.96 : x
  2. Step 2: Convert to fraction form
    1,995.48/2,993.22 = 696.96/x
  3. Step 3: Cross multiply
    1,995.48x = 2,993.22 × 696.96
  4. Step 4: Simplify right side
    1,995.48x = 2,086,154.61
  5. Step 5: Solve for x
    x = 2,086,154.61/1,995.48
  6. Step 6: Final answer
    x = 1,045.44

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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.