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Finding the Fourth Proportional to 11,873.76, 17,793.60 and 6,668.68

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Solution

The fourth proportional to 11,873.76, 17,793.60 and 6,668.68 is: 9,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.76 : 17,793.60 = 6,668.68 : x
  2. Step 2: Convert to fraction form
    11,873.76/17,793.60 = 6,668.68/x
  3. Step 3: Cross multiply
    11,873.76x = 17,793.60 × 6,668.68
  4. Step 4: Simplify right side
    11,873.76x = 118,659,824.45
  5. Step 5: Solve for x
    x = 118,659,824.45/11,873.76
  6. Step 6: Final answer
    x = 9,993.45

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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.