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Finding the Fourth Proportional to 60,936.05, 91,367.16 and 39,850.64

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Solution

The fourth proportional to 60,936.05, 91,367.16 and 39,850.64 is: 59,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,936.05 : 91,367.16 = 39,850.64 : x
  2. Step 2: Convert to fraction form
    60,936.05/91,367.16 = 39,850.64/x
  3. Step 3: Cross multiply
    60,936.05x = 91,367.16 × 39,850.64
  4. Step 4: Simplify right side
    60,936.05x = 3,641,039,800.98
  5. Step 5: Solve for x
    x = 3,641,039,800.98/60,936.05
  6. Step 6: Final answer
    x = 59,751.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.