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Finding the Fourth Proportional to 56,896.79, 85,179.83 and 33,131.79

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Solution

The fourth proportional to 56,896.79, 85,179.83 and 33,131.79 is: 49,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,896.79 : 85,179.83 = 33,131.79 : x
  2. Step 2: Convert to fraction form
    56,896.79/85,179.83 = 33,131.79/x
  3. Step 3: Cross multiply
    56,896.79x = 85,179.83 × 33,131.79
  4. Step 4: Simplify right side
    56,896.79x = 2,822,160,074.14
  5. Step 5: Solve for x
    x = 2,822,160,074.14/56,896.79
  6. Step 6: Final answer
    x = 49,601.40

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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.