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Finding the Fourth Proportional to 1,067.34, 1,600.20 and 950.70

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Solution

The fourth proportional to 1,067.34, 1,600.20 and 950.70 is: 1,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.34 : 1,600.20 = 950.70 : x
  2. Step 2: Convert to fraction form
    1,067.34/1,600.20 = 950.70/x
  3. Step 3: Cross multiply
    1,067.34x = 1,600.20 × 950.70
  4. Step 4: Simplify right side
    1,067.34x = 1,521,310.14
  5. Step 5: Solve for x
    x = 1,521,310.14/1,067.34
  6. Step 6: Final answer
    x = 1,425.33

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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.