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Finding the Fourth Proportional to 10,203.91, 15,286.32 and 4,923.33

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Solution

The fourth proportional to 10,203.91, 15,286.32 and 4,923.33 is: 7,375.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.91 : 15,286.32 = 4,923.33 : x
  2. Step 2: Convert to fraction form
    10,203.91/15,286.32 = 4,923.33/x
  3. Step 3: Cross multiply
    10,203.91x = 15,286.32 × 4,923.33
  4. Step 4: Simplify right side
    10,203.91x = 75,259,597.85
  5. Step 5: Solve for x
    x = 75,259,597.85/10,203.91
  6. Step 6: Final answer
    x = 7,375.56

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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.