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Finding the Fourth Proportional to 11,866.14, 17,800.16 and 3,545.55

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Solution

The fourth proportional to 11,866.14, 17,800.16 and 3,545.55 is: 5,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.14 : 17,800.16 = 3,545.55 : x
  2. Step 2: Convert to fraction form
    11,866.14/17,800.16 = 3,545.55/x
  3. Step 3: Cross multiply
    11,866.14x = 17,800.16 × 3,545.55
  4. Step 4: Simplify right side
    11,866.14x = 63,111,339.56
  5. Step 5: Solve for x
    x = 63,111,339.56/11,866.14
  6. Step 6: Final answer
    x = 5,318.61

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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.