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Finding the Fourth Proportional to 5,169.96, 7,754.97 and 1,274.37

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Solution

The fourth proportional to 5,169.96, 7,754.97 and 1,274.37 is: 1,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.96 : 7,754.97 = 1,274.37 : x
  2. Step 2: Convert to fraction form
    5,169.96/7,754.97 = 1,274.37/x
  3. Step 3: Cross multiply
    5,169.96x = 7,754.97 × 1,274.37
  4. Step 4: Simplify right side
    5,169.96x = 9,882,676.82
  5. Step 5: Solve for x
    x = 9,882,676.82/5,169.96
  6. Step 6: Final answer
    x = 1,911.56

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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.