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Finding the Fourth Proportional to 11,751.58, 17,621.79 and 6,822.73

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Solution

The fourth proportional to 11,751.58, 17,621.79 and 6,822.73 is: 10,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.58 : 17,621.79 = 6,822.73 : x
  2. Step 2: Convert to fraction form
    11,751.58/17,621.79 = 6,822.73/x
  3. Step 3: Cross multiply
    11,751.58x = 17,621.79 × 6,822.73
  4. Step 4: Simplify right side
    11,751.58x = 120,228,715.29
  5. Step 5: Solve for x
    x = 120,228,715.29/11,751.58
  6. Step 6: Final answer
    x = 10,230.86

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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.