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Finding the Fourth Proportional to 66,592.70, 91,896.78 and 36,377.25

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Solution

The fourth proportional to 66,592.70, 91,896.78 and 36,377.25 is: 50,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,592.70 : 91,896.78 = 36,377.25 : x
  2. Step 2: Convert to fraction form
    66,592.70/91,896.78 = 36,377.25/x
  3. Step 3: Cross multiply
    66,592.70x = 91,896.78 × 36,377.25
  4. Step 4: Simplify right side
    66,592.70x = 3,342,951,728.63
  5. Step 5: Solve for x
    x = 3,342,951,728.63/66,592.70
  6. Step 6: Final answer
    x = 50,199.97

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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.