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Finding the Fourth Proportional to 54,794.55, 75,620.48 and 30,923.31

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Solution

The fourth proportional to 54,794.55, 75,620.48 and 30,923.31 is: 42,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,794.55 : 75,620.48 = 30,923.31 : x
  2. Step 2: Convert to fraction form
    54,794.55/75,620.48 = 30,923.31/x
  3. Step 3: Cross multiply
    54,794.55x = 75,620.48 × 30,923.31
  4. Step 4: Simplify right side
    54,794.55x = 2,338,435,390.77
  5. Step 5: Solve for x
    x = 2,338,435,390.77/54,794.55
  6. Step 6: Final answer
    x = 42,676.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.