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Finding the Fourth Proportional to 66,819.81, 92,213.64 and 36,605.13

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Solution

The fourth proportional to 66,819.81, 92,213.64 and 36,605.13 is: 50,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,819.81 : 92,213.64 = 36,605.13 : x
  2. Step 2: Convert to fraction form
    66,819.81/92,213.64 = 36,605.13/x
  3. Step 3: Cross multiply
    66,819.81x = 92,213.64 × 36,605.13
  4. Step 4: Simplify right side
    66,819.81x = 3,375,491,865.54
  5. Step 5: Solve for x
    x = 3,375,491,865.54/66,819.81
  6. Step 6: Final answer
    x = 50,516.33

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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.