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Finding the Fourth Proportional to 56,843.64, 85,252.50 and 28,755.54

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Solution

The fourth proportional to 56,843.64, 85,252.50 and 28,755.54 is: 43,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,843.64 : 85,252.50 = 28,755.54 : x
  2. Step 2: Convert to fraction form
    56,843.64/85,252.50 = 28,755.54/x
  3. Step 3: Cross multiply
    56,843.64x = 85,252.50 × 28,755.54
  4. Step 4: Simplify right side
    56,843.64x = 2,451,481,673.85
  5. Step 5: Solve for x
    x = 2,451,481,673.85/56,843.64
  6. Step 6: Final answer
    x = 43,126.75

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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.