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Finding the Fourth Proportional to 67,079.91, 100,666.04 and 27,636.96

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Solution

The fourth proportional to 67,079.91, 100,666.04 and 27,636.96 is: 41,474.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,079.91 : 100,666.04 = 27,636.96 : x
  2. Step 2: Convert to fraction form
    67,079.91/100,666.04 = 27,636.96/x
  3. Step 3: Cross multiply
    67,079.91x = 100,666.04 × 27,636.96
  4. Step 4: Simplify right side
    67,079.91x = 2,782,103,182.65
  5. Step 5: Solve for x
    x = 2,782,103,182.65/67,079.91
  6. Step 6: Final answer
    x = 41,474.46

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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.