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Finding the Fourth Proportional to 1,729.26, 2,593.05 and 851.82

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Solution

The fourth proportional to 1,729.26, 2,593.05 and 851.82 is: 1,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.26 : 2,593.05 = 851.82 : x
  2. Step 2: Convert to fraction form
    1,729.26/2,593.05 = 851.82/x
  3. Step 3: Cross multiply
    1,729.26x = 2,593.05 × 851.82
  4. Step 4: Simplify right side
    1,729.26x = 2,208,811.85
  5. Step 5: Solve for x
    x = 2,208,811.85/1,729.26
  6. Step 6: Final answer
    x = 1,277.32

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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.