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Finding the Fourth Proportional to 54,392.99, 81,589.48 and 16,956.08

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Solution

The fourth proportional to 54,392.99, 81,589.48 and 16,956.08 is: 25,434.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,392.99 : 81,589.48 = 16,956.08 : x
  2. Step 2: Convert to fraction form
    54,392.99/81,589.48 = 16,956.08/x
  3. Step 3: Cross multiply
    54,392.99x = 81,589.48 × 16,956.08
  4. Step 4: Simplify right side
    54,392.99x = 1,383,437,750.04
  5. Step 5: Solve for x
    x = 1,383,437,750.04/54,392.99
  6. Step 6: Final answer
    x = 25,434.12

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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.