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Finding the Fourth Proportional to 66,553.58, 91,843.50 and 36,338.90

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Solution

The fourth proportional to 66,553.58, 91,843.50 and 36,338.90 is: 50,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,553.58 : 91,843.50 = 36,338.90 : x
  2. Step 2: Convert to fraction form
    66,553.58/91,843.50 = 36,338.90/x
  3. Step 3: Cross multiply
    66,553.58x = 91,843.50 × 36,338.90
  4. Step 4: Simplify right side
    66,553.58x = 3,337,491,439.20
  5. Step 5: Solve for x
    x = 3,337,491,439.20/66,553.58
  6. Step 6: Final answer
    x = 50,147.43

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1.5x scale

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.