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Finding the Fourth Proportional to 8,141.58, 11,234.79 and 4,997.79

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Solution

The fourth proportional to 8,141.58, 11,234.79 and 4,997.79 is: 6,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.58 : 11,234.79 = 4,997.79 : x
  2. Step 2: Convert to fraction form
    8,141.58/11,234.79 = 4,997.79/x
  3. Step 3: Cross multiply
    8,141.58x = 11,234.79 × 4,997.79
  4. Step 4: Simplify right side
    8,141.58x = 56,149,121.11
  5. Step 5: Solve for x
    x = 56,149,121.11/8,141.58
  6. Step 6: Final answer
    x = 6,896.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.