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Finding the Fourth Proportional to 5,299.32, 7,945.14 and 3,997.56

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Solution

The fourth proportional to 5,299.32, 7,945.14 and 3,997.56 is: 5,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.32 : 7,945.14 = 3,997.56 : x
  2. Step 2: Convert to fraction form
    5,299.32/7,945.14 = 3,997.56/x
  3. Step 3: Cross multiply
    5,299.32x = 7,945.14 × 3,997.56
  4. Step 4: Simplify right side
    5,299.32x = 31,761,173.86
  5. Step 5: Solve for x
    x = 31,761,173.86/5,299.32
  6. Step 6: Final answer
    x = 5,993.44

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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.