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Finding the Fourth Proportional to 8,380.54, 12,573.54 and 3,997.43

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Solution

The fourth proportional to 8,380.54, 12,573.54 and 3,997.43 is: 5,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.54 : 12,573.54 = 3,997.43 : x
  2. Step 2: Convert to fraction form
    8,380.54/12,573.54 = 3,997.43/x
  3. Step 3: Cross multiply
    8,380.54x = 12,573.54 × 3,997.43
  4. Step 4: Simplify right side
    8,380.54x = 50,261,846.00
  5. Step 5: Solve for x
    x = 50,261,846.00/8,380.54
  6. Step 6: Final answer
    x = 5,997.45

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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.