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Finding the Fourth Proportional to 54,911.93, 75,780.77 and 33,398.73

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Solution

The fourth proportional to 54,911.93, 75,780.77 and 33,398.73 is: 46,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,911.93 : 75,780.77 = 33,398.73 : x
  2. Step 2: Convert to fraction form
    54,911.93/75,780.77 = 33,398.73/x
  3. Step 3: Cross multiply
    54,911.93x = 75,780.77 × 33,398.73
  4. Step 4: Simplify right side
    54,911.93x = 2,530,981,309.43
  5. Step 5: Solve for x
    x = 2,530,981,309.43/54,911.93
  6. Step 6: Final answer
    x = 46,091.65

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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.