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Finding the Fourth Proportional to 56,704.88, 85,069.61 and 17,260.96

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Solution

The fourth proportional to 56,704.88, 85,069.61 and 17,260.96 is: 25,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,704.88 : 85,069.61 = 17,260.96 : x
  2. Step 2: Convert to fraction form
    56,704.88/85,069.61 = 17,260.96/x
  3. Step 3: Cross multiply
    56,704.88x = 85,069.61 × 17,260.96
  4. Step 4: Simplify right side
    56,704.88x = 1,468,382,836.45
  5. Step 5: Solve for x
    x = 1,468,382,836.45/56,704.88
  6. Step 6: Final answer
    x = 25,895.18

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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.