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Finding the Fourth Proportional to 11,649.56, 17,481.90 and 5,079.92

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Solution

The fourth proportional to 11,649.56, 17,481.90 and 5,079.92 is: 7,623.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,649.56 : 17,481.90 = 5,079.92 : x
  2. Step 2: Convert to fraction form
    11,649.56/17,481.90 = 5,079.92/x
  3. Step 3: Cross multiply
    11,649.56x = 17,481.90 × 5,079.92
  4. Step 4: Simplify right side
    11,649.56x = 88,806,653.45
  5. Step 5: Solve for x
    x = 88,806,653.45/11,649.56
  6. Step 6: Final answer
    x = 7,623.18

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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.