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Finding the Fourth Proportional to 11,960.64, 17,921.52 and 7,034.76

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Solution

The fourth proportional to 11,960.64, 17,921.52 and 7,034.76 is: 10,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.64 : 17,921.52 = 7,034.76 : x
  2. Step 2: Convert to fraction form
    11,960.64/17,921.52 = 7,034.76/x
  3. Step 3: Cross multiply
    11,960.64x = 17,921.52 × 7,034.76
  4. Step 4: Simplify right side
    11,960.64x = 126,073,592.04
  5. Step 5: Solve for x
    x = 126,073,592.04/11,960.64
  6. Step 6: Final answer
    x = 10,540.71

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1.5x scale

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.