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Finding the Fourth Proportional to 6,604.92, 9,115.02 and 3,620.76

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Solution

The fourth proportional to 6,604.92, 9,115.02 and 3,620.76 is: 4,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.92 : 9,115.02 = 3,620.76 : x
  2. Step 2: Convert to fraction form
    6,604.92/9,115.02 = 3,620.76/x
  3. Step 3: Cross multiply
    6,604.92x = 9,115.02 × 3,620.76
  4. Step 4: Simplify right side
    6,604.92x = 33,003,299.82
  5. Step 5: Solve for x
    x = 33,003,299.82/6,604.92
  6. Step 6: Final answer
    x = 4,996.78

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Half scale
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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.