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Finding the Fourth Proportional to 11,336.65, 17,007.86 and 6,660.61

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Solution

The fourth proportional to 11,336.65, 17,007.86 and 6,660.61 is: 9,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.65 : 17,007.86 = 6,660.61 : x
  2. Step 2: Convert to fraction form
    11,336.65/17,007.86 = 6,660.61/x
  3. Step 3: Cross multiply
    11,336.65x = 17,007.86 × 6,660.61
  4. Step 4: Simplify right side
    11,336.65x = 113,282,646.57
  5. Step 5: Solve for x
    x = 113,282,646.57/11,336.65
  6. Step 6: Final answer
    x = 9,992.61

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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.