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Finding the Fourth Proportional to 1,367.75, 2,052.33 and 751.94

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Solution

The fourth proportional to 1,367.75, 2,052.33 and 751.94 is: 1,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.75 : 2,052.33 = 751.94 : x
  2. Step 2: Convert to fraction form
    1,367.75/2,052.33 = 751.94/x
  3. Step 3: Cross multiply
    1,367.75x = 2,052.33 × 751.94
  4. Step 4: Simplify right side
    1,367.75x = 1,543,229.02
  5. Step 5: Solve for x
    x = 1,543,229.02/1,367.75
  6. Step 6: Final answer
    x = 1,128.30

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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.