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Finding the Fourth Proportional to 11,076.13, 16,619.08 and 5,809.88

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Solution

The fourth proportional to 11,076.13, 16,619.08 and 5,809.88 is: 8,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.13 : 16,619.08 = 5,809.88 : x
  2. Step 2: Convert to fraction form
    11,076.13/16,619.08 = 5,809.88/x
  3. Step 3: Cross multiply
    11,076.13x = 16,619.08 × 5,809.88
  4. Step 4: Simplify right side
    11,076.13x = 96,554,833.49
  5. Step 5: Solve for x
    x = 96,554,833.49/11,076.13
  6. Step 6: Final answer
    x = 8,717.38

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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.