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Finding the Fourth Proportional to 7,161.70, 10,744.11 and 2,944.97

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Solution

The fourth proportional to 7,161.70, 10,744.11 and 2,944.97 is: 4,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.70 : 10,744.11 = 2,944.97 : x
  2. Step 2: Convert to fraction form
    7,161.70/10,744.11 = 2,944.97/x
  3. Step 3: Cross multiply
    7,161.70x = 10,744.11 × 2,944.97
  4. Step 4: Simplify right side
    7,161.70x = 31,641,081.63
  5. Step 5: Solve for x
    x = 31,641,081.63/7,161.70
  6. Step 6: Final answer
    x = 4,418.10

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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.