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Finding the Fourth Proportional to 4,839.74, 7,243.41 and 4,254.38

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Solution

The fourth proportional to 4,839.74, 7,243.41 and 4,254.38 is: 6,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.74 : 7,243.41 = 4,254.38 : x
  2. Step 2: Convert to fraction form
    4,839.74/7,243.41 = 4,254.38/x
  3. Step 3: Cross multiply
    4,839.74x = 7,243.41 × 4,254.38
  4. Step 4: Simplify right side
    4,839.74x = 30,816,218.64
  5. Step 5: Solve for x
    x = 30,816,218.64/4,839.74
  6. Step 6: Final answer
    x = 6,367.33

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1.5x scale

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.