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Finding the Fourth Proportional to 66,993.75, 92,451.74 and 41,857.83

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Solution

The fourth proportional to 66,993.75, 92,451.74 and 41,857.83 is: 57,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,993.75 : 92,451.74 = 41,857.83 : x
  2. Step 2: Convert to fraction form
    66,993.75/92,451.74 = 41,857.83/x
  3. Step 3: Cross multiply
    66,993.75x = 92,451.74 × 41,857.83
  4. Step 4: Simplify right side
    66,993.75x = 3,869,829,006.84
  5. Step 5: Solve for x
    x = 3,869,829,006.84/66,993.75
  6. Step 6: Final answer
    x = 57,764.03

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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.