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Finding the Fourth Proportional to 3,487.86, 5,234.22 and 2,393.28

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Solution

The fourth proportional to 3,487.86, 5,234.22 and 2,393.28 is: 3,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.86 : 5,234.22 = 2,393.28 : x
  2. Step 2: Convert to fraction form
    3,487.86/5,234.22 = 2,393.28/x
  3. Step 3: Cross multiply
    3,487.86x = 5,234.22 × 2,393.28
  4. Step 4: Simplify right side
    3,487.86x = 12,526,954.04
  5. Step 5: Solve for x
    x = 12,526,954.04/3,487.86
  6. Step 6: Final answer
    x = 3,591.59

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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.