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Finding the Fourth Proportional to 54,493.70, 75,198.90 and 31,834.79

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Solution

The fourth proportional to 54,493.70, 75,198.90 and 31,834.79 is: 43,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,493.70 : 75,198.90 = 31,834.79 : x
  2. Step 2: Convert to fraction form
    54,493.70/75,198.90 = 31,834.79/x
  3. Step 3: Cross multiply
    54,493.70x = 75,198.90 × 31,834.79
  4. Step 4: Simplify right side
    54,493.70x = 2,393,941,189.73
  5. Step 5: Solve for x
    x = 2,393,941,189.73/54,493.70
  6. Step 6: Final answer
    x = 43,930.60

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1.5x scale

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.