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Finding the Fourth Proportional to 3,375.42, 5,063.22 and 910.23

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Solution

The fourth proportional to 3,375.42, 5,063.22 and 910.23 is: 1,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.42 : 5,063.22 = 910.23 : x
  2. Step 2: Convert to fraction form
    3,375.42/5,063.22 = 910.23/x
  3. Step 3: Cross multiply
    3,375.42x = 5,063.22 × 910.23
  4. Step 4: Simplify right side
    3,375.42x = 4,608,694.74
  5. Step 5: Solve for x
    x = 4,608,694.74/3,375.42
  6. Step 6: Final answer
    x = 1,365.37

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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.