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Finding the Fourth Proportional to 11,786.56, 17,654.24 and 7,173.44

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Solution

The fourth proportional to 11,786.56, 17,654.24 and 7,173.44 is: 10,744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.56 : 17,654.24 = 7,173.44 : x
  2. Step 2: Convert to fraction form
    11,786.56/17,654.24 = 7,173.44/x
  3. Step 3: Cross multiply
    11,786.56x = 17,654.24 × 7,173.44
  4. Step 4: Simplify right side
    11,786.56x = 126,641,631.39
  5. Step 5: Solve for x
    x = 126,641,631.39/11,786.56
  6. Step 6: Final answer
    x = 10,744.58

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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.