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Finding the Fourth Proportional to 7,448.44, 11,179.86 and 5,676.88

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Solution

The fourth proportional to 7,448.44, 11,179.86 and 5,676.88 is: 8,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.44 : 11,179.86 = 5,676.88 : x
  2. Step 2: Convert to fraction form
    7,448.44/11,179.86 = 5,676.88/x
  3. Step 3: Cross multiply
    7,448.44x = 11,179.86 × 5,676.88
  4. Step 4: Simplify right side
    7,448.44x = 63,466,723.64
  5. Step 5: Solve for x
    x = 63,466,723.64/7,448.44
  6. Step 6: Final answer
    x = 8,520.81

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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.