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Finding the Fourth Proportional to 11,269.88, 16,822.25 and 9,939.82

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Solution

The fourth proportional to 11,269.88, 16,822.25 and 9,939.82 is: 14,836.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.88 : 16,822.25 = 9,939.82 : x
  2. Step 2: Convert to fraction form
    11,269.88/16,822.25 = 9,939.82/x
  3. Step 3: Cross multiply
    11,269.88x = 16,822.25 × 9,939.82
  4. Step 4: Simplify right side
    11,269.88x = 167,210,137.00
  5. Step 5: Solve for x
    x = 167,210,137.00/11,269.88
  6. Step 6: Final answer
    x = 14,836.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.