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Finding the Fourth Proportional to 7,998.52, 11,997.60 and 3,614.80

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Solution

The fourth proportional to 7,998.52, 11,997.60 and 3,614.80 is: 5,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.52 : 11,997.60 = 3,614.80 : x
  2. Step 2: Convert to fraction form
    7,998.52/11,997.60 = 3,614.80/x
  3. Step 3: Cross multiply
    7,998.52x = 11,997.60 × 3,614.80
  4. Step 4: Simplify right side
    7,998.52x = 43,368,924.48
  5. Step 5: Solve for x
    x = 43,368,924.48/7,998.52
  6. Step 6: Final answer
    x = 5,422.12

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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.