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Finding the Fourth Proportional to 11,668.57, 17,487.16 and 6,395.67

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Solution

The fourth proportional to 11,668.57, 17,487.16 and 6,395.67 is: 9,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.57 : 17,487.16 = 6,395.67 : x
  2. Step 2: Convert to fraction form
    11,668.57/17,487.16 = 6,395.67/x
  3. Step 3: Cross multiply
    11,668.57x = 17,487.16 × 6,395.67
  4. Step 4: Simplify right side
    11,668.57x = 111,842,088.61
  5. Step 5: Solve for x
    x = 111,842,088.61/11,668.57
  6. Step 6: Final answer
    x = 9,584.90

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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.