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Finding the Fourth Proportional to 1,213.37, 1,674.99 and 793.73

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Solution

The fourth proportional to 1,213.37, 1,674.99 and 793.73 is: 1,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.37 : 1,674.99 = 793.73 : x
  2. Step 2: Convert to fraction form
    1,213.37/1,674.99 = 793.73/x
  3. Step 3: Cross multiply
    1,213.37x = 1,674.99 × 793.73
  4. Step 4: Simplify right side
    1,213.37x = 1,329,481.44
  5. Step 5: Solve for x
    x = 1,329,481.44/1,213.37
  6. Step 6: Final answer
    x = 1,095.70

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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.