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Finding the Fourth Proportional to 54,679.88, 82,030.74 and 17,245.74

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Solution

The fourth proportional to 54,679.88, 82,030.74 and 17,245.74 is: 25,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.88 : 82,030.74 = 17,245.74 : x
  2. Step 2: Convert to fraction form
    54,679.88/82,030.74 = 17,245.74/x
  3. Step 3: Cross multiply
    54,679.88x = 82,030.74 × 17,245.74
  4. Step 4: Simplify right side
    54,679.88x = 1,414,680,814.05
  5. Step 5: Solve for x
    x = 1,414,680,814.05/54,679.88
  6. Step 6: Final answer
    x = 25,872.05

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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.