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Finding the Fourth Proportional to 11,568.73, 17,353.20 and 2,803.72

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Solution

The fourth proportional to 11,568.73, 17,353.20 and 2,803.72 is: 4,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.73 : 17,353.20 = 2,803.72 : x
  2. Step 2: Convert to fraction form
    11,568.73/17,353.20 = 2,803.72/x
  3. Step 3: Cross multiply
    11,568.73x = 17,353.20 × 2,803.72
  4. Step 4: Simplify right side
    11,568.73x = 48,653,513.90
  5. Step 5: Solve for x
    x = 48,653,513.90/11,568.73
  6. Step 6: Final answer
    x = 4,205.61

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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.