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Finding the Fourth Proportional to 66,757.81, 92,125.97 and 36,949.81

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Solution

The fourth proportional to 66,757.81, 92,125.97 and 36,949.81 is: 50,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,757.81 : 92,125.97 = 36,949.81 : x
  2. Step 2: Convert to fraction form
    66,757.81/92,125.97 = 36,949.81/x
  3. Step 3: Cross multiply
    66,757.81x = 92,125.97 × 36,949.81
  4. Step 4: Simplify right side
    66,757.81x = 3,404,037,087.57
  5. Step 5: Solve for x
    x = 3,404,037,087.57/66,757.81
  6. Step 6: Final answer
    x = 50,990.84

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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.