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Finding the Fourth Proportional to 5,572.75, 8,353.49 and 3,494.21

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Solution

The fourth proportional to 5,572.75, 8,353.49 and 3,494.21 is: 5,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.75 : 8,353.49 = 3,494.21 : x
  2. Step 2: Convert to fraction form
    5,572.75/8,353.49 = 3,494.21/x
  3. Step 3: Cross multiply
    5,572.75x = 8,353.49 × 3,494.21
  4. Step 4: Simplify right side
    5,572.75x = 29,188,848.29
  5. Step 5: Solve for x
    x = 29,188,848.29/5,572.75
  6. Step 6: Final answer
    x = 5,237.78

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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.