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Finding the Fourth Proportional to 8,005.77, 11,049.01 and 4,469.72

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Solution

The fourth proportional to 8,005.77, 11,049.01 and 4,469.72 is: 6,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.77 : 11,049.01 = 4,469.72 : x
  2. Step 2: Convert to fraction form
    8,005.77/11,049.01 = 4,469.72/x
  3. Step 3: Cross multiply
    8,005.77x = 11,049.01 × 4,469.72
  4. Step 4: Simplify right side
    8,005.77x = 49,385,914.56
  5. Step 5: Solve for x
    x = 49,385,914.56/8,005.77
  6. Step 6: Final answer
    x = 6,168.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.