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Finding the Fourth Proportional to 4,906.50, 7,361.38 and 1,983.22

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Solution

The fourth proportional to 4,906.50, 7,361.38 and 1,983.22 is: 2,975.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906.50 : 7,361.38 = 1,983.22 : x
  2. Step 2: Convert to fraction form
    4,906.50/7,361.38 = 1,983.22/x
  3. Step 3: Cross multiply
    4,906.50x = 7,361.38 × 1,983.22
  4. Step 4: Simplify right side
    4,906.50x = 14,599,236.04
  5. Step 5: Solve for x
    x = 14,599,236.04/4,906.50
  6. Step 6: Final answer
    x = 2,975.49

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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.