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Finding the Fourth Proportional to 2,927.97, 4,391.79 and 736.56

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Solution

The fourth proportional to 2,927.97, 4,391.79 and 736.56 is: 1,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.97 : 4,391.79 = 736.56 : x
  2. Step 2: Convert to fraction form
    2,927.97/4,391.79 = 736.56/x
  3. Step 3: Cross multiply
    2,927.97x = 4,391.79 × 736.56
  4. Step 4: Simplify right side
    2,927.97x = 3,234,816.84
  5. Step 5: Solve for x
    x = 3,234,816.84/2,927.97
  6. Step 6: Final answer
    x = 1,104.80

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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.