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Finding the Fourth Proportional to 2,523.53, 3,785.69 and 674.80

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Solution

The fourth proportional to 2,523.53, 3,785.69 and 674.80 is: 1,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,523.53 : 3,785.69 = 674.80 : x
  2. Step 2: Convert to fraction form
    2,523.53/3,785.69 = 674.80/x
  3. Step 3: Cross multiply
    2,523.53x = 3,785.69 × 674.80
  4. Step 4: Simplify right side
    2,523.53x = 2,554,583.61
  5. Step 5: Solve for x
    x = 2,554,583.61/2,523.53
  6. Step 6: Final answer
    x = 1,012.31

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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.