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Finding the Fourth Proportional to 66,550.74, 91,835.87 and 36,329.91

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Solution

The fourth proportional to 66,550.74, 91,835.87 and 36,329.91 is: 50,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,550.74 : 91,835.87 = 36,329.91 : x
  2. Step 2: Convert to fraction form
    66,550.74/91,835.87 = 36,329.91/x
  3. Step 3: Cross multiply
    66,550.74x = 91,835.87 × 36,329.91
  4. Step 4: Simplify right side
    66,550.74x = 3,336,388,891.87
  5. Step 5: Solve for x
    x = 3,336,388,891.87/66,550.74
  6. Step 6: Final answer
    x = 50,133.01

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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.