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Finding the Fourth Proportional to 11,203.59, 16,800.24 and 5,353.77

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Solution

The fourth proportional to 11,203.59, 16,800.24 and 5,353.77 is: 8,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.59 : 16,800.24 = 5,353.77 : x
  2. Step 2: Convert to fraction form
    11,203.59/16,800.24 = 5,353.77/x
  3. Step 3: Cross multiply
    11,203.59x = 16,800.24 × 5,353.77
  4. Step 4: Simplify right side
    11,203.59x = 89,944,620.90
  5. Step 5: Solve for x
    x = 89,944,620.90/11,203.59
  6. Step 6: Final answer
    x = 8,028.20

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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.