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Finding the Fourth Proportional to 45,855.91, 68,695.31 and 33,826.87

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Solution

The fourth proportional to 45,855.91, 68,695.31 and 33,826.87 is: 50,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,855.91 : 68,695.31 = 33,826.87 : x
  2. Step 2: Convert to fraction form
    45,855.91/68,695.31 = 33,826.87/x
  3. Step 3: Cross multiply
    45,855.91x = 68,695.31 × 33,826.87
  4. Step 4: Simplify right side
    45,855.91x = 2,323,747,151.85
  5. Step 5: Solve for x
    x = 2,323,747,151.85/45,855.91
  6. Step 6: Final answer
    x = 50,674.98

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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.