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Finding the Fourth Proportional to 66,958.67, 92,405 and 36,745.94

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Solution

The fourth proportional to 66,958.67, 92,405 and 36,745.94 is: 50,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.67 : 92,405 = 36,745.94 : x
  2. Step 2: Convert to fraction form
    66,958.67/92,405 = 36,745.94/x
  3. Step 3: Cross multiply
    66,958.67x = 92,405 × 36,745.94
  4. Step 4: Simplify right side
    66,958.67x = 3,395,508,585.70
  5. Step 5: Solve for x
    x = 3,395,508,585.70/66,958.67
  6. Step 6: Final answer
    x = 50,710.51

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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.