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Finding the Fourth Proportional to 54,081.99, 81,067.32 and 25,959.87

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Solution

The fourth proportional to 54,081.99, 81,067.32 and 25,959.87 is: 38,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,081.99 : 81,067.32 = 25,959.87 : x
  2. Step 2: Convert to fraction form
    54,081.99/81,067.32 = 25,959.87/x
  3. Step 3: Cross multiply
    54,081.99x = 81,067.32 × 25,959.87
  4. Step 4: Simplify right side
    54,081.99x = 2,104,497,088.45
  5. Step 5: Solve for x
    x = 2,104,497,088.45/54,081.99
  6. Step 6: Final answer
    x = 38,913.09

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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.