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Finding the Fourth Proportional to 4,047.99, 6,072.21 and 1,274.88

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Solution

The fourth proportional to 4,047.99, 6,072.21 and 1,274.88 is: 1,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.99 : 6,072.21 = 1,274.88 : x
  2. Step 2: Convert to fraction form
    4,047.99/6,072.21 = 1,274.88/x
  3. Step 3: Cross multiply
    4,047.99x = 6,072.21 × 1,274.88
  4. Step 4: Simplify right side
    4,047.99x = 7,741,351.87
  5. Step 5: Solve for x
    x = 7,741,351.87/4,047.99
  6. Step 6: Final answer
    x = 1,912.39

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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.