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Finding the Fourth Proportional to 39,850.50, 54,993.69 and 22,186.50

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Solution

The fourth proportional to 39,850.50, 54,993.69 and 22,186.50 is: 30,617.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,850.50 : 54,993.69 = 22,186.50 : x
  2. Step 2: Convert to fraction form
    39,850.50/54,993.69 = 22,186.50/x
  3. Step 3: Cross multiply
    39,850.50x = 54,993.69 × 22,186.50
  4. Step 4: Simplify right side
    39,850.50x = 1,220,117,503.19
  5. Step 5: Solve for x
    x = 1,220,117,503.19/39,850.50
  6. Step 6: Final answer
    x = 30,617.37

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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.