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Finding the Fourth Proportional to 56,872.44, 85,326.42 and 16,891.64

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Solution

The fourth proportional to 56,872.44, 85,326.42 and 16,891.64 is: 25,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,872.44 : 85,326.42 = 16,891.64 : x
  2. Step 2: Convert to fraction form
    56,872.44/85,326.42 = 16,891.64/x
  3. Step 3: Cross multiply
    56,872.44x = 85,326.42 × 16,891.64
  4. Step 4: Simplify right side
    56,872.44x = 1,441,303,169.13
  5. Step 5: Solve for x
    x = 1,441,303,169.13/56,872.44
  6. Step 6: Final answer
    x = 25,342.73

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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.