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Finding the Fourth Proportional to 7,992.48, 11,997.24 and 7,073.88

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Solution

The fourth proportional to 7,992.48, 11,997.24 and 7,073.88 is: 10,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.48 : 11,997.24 = 7,073.88 : x
  2. Step 2: Convert to fraction form
    7,992.48/11,997.24 = 7,073.88/x
  3. Step 3: Cross multiply
    7,992.48x = 11,997.24 × 7,073.88
  4. Step 4: Simplify right side
    7,992.48x = 84,867,036.09
  5. Step 5: Solve for x
    x = 84,867,036.09/7,992.48
  6. Step 6: Final answer
    x = 10,618.36

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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.