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Finding the Fourth Proportional to 5,753.79, 7,939.94 and 3,519.41

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Solution

The fourth proportional to 5,753.79, 7,939.94 and 3,519.41 is: 4,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.79 : 7,939.94 = 3,519.41 : x
  2. Step 2: Convert to fraction form
    5,753.79/7,939.94 = 3,519.41/x
  3. Step 3: Cross multiply
    5,753.79x = 7,939.94 × 3,519.41
  4. Step 4: Simplify right side
    5,753.79x = 27,943,846.94
  5. Step 5: Solve for x
    x = 27,943,846.94/5,753.79
  6. Step 6: Final answer
    x = 4,856.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.