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Finding the Fourth Proportional to 11,980.37, 17,944.39 and 9,876.75

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Solution

The fourth proportional to 11,980.37, 17,944.39 and 9,876.75 is: 14,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.37 : 17,944.39 = 9,876.75 : x
  2. Step 2: Convert to fraction form
    11,980.37/17,944.39 = 9,876.75/x
  3. Step 3: Cross multiply
    11,980.37x = 17,944.39 × 9,876.75
  4. Step 4: Simplify right side
    11,980.37x = 177,232,344.72
  5. Step 5: Solve for x
    x = 177,232,344.72/11,980.37
  6. Step 6: Final answer
    x = 14,793.56

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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.