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Finding the Fourth Proportional to 11,958.92, 17,913.76 and 7,013.60

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Solution

The fourth proportional to 11,958.92, 17,913.76 and 7,013.60 is: 10,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.92 : 17,913.76 = 7,013.60 : x
  2. Step 2: Convert to fraction form
    11,958.92/17,913.76 = 7,013.60/x
  3. Step 3: Cross multiply
    11,958.92x = 17,913.76 × 7,013.60
  4. Step 4: Simplify right side
    11,958.92x = 125,639,947.14
  5. Step 5: Solve for x
    x = 125,639,947.14/11,958.92
  6. Step 6: Final answer
    x = 10,505.96

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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.