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Finding the Fourth Proportional to 66,286.68, 91,476.72 and 36,073.27

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Solution

The fourth proportional to 66,286.68, 91,476.72 and 36,073.27 is: 49,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,286.68 : 91,476.72 = 36,073.27 : x
  2. Step 2: Convert to fraction form
    66,286.68/91,476.72 = 36,073.27/x
  3. Step 3: Cross multiply
    66,286.68x = 91,476.72 × 36,073.27
  4. Step 4: Simplify right side
    66,286.68x = 3,299,864,238.91
  5. Step 5: Solve for x
    x = 3,299,864,238.91/66,286.68
  6. Step 6: Final answer
    x = 49,781.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.