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Finding the Fourth Proportional to 11,760.66, 17,640.96 and 2,995.56

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Solution

The fourth proportional to 11,760.66, 17,640.96 and 2,995.56 is: 4,493.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.66 : 17,640.96 = 2,995.56 : x
  2. Step 2: Convert to fraction form
    11,760.66/17,640.96 = 2,995.56/x
  3. Step 3: Cross multiply
    11,760.66x = 17,640.96 × 2,995.56
  4. Step 4: Simplify right side
    11,760.66x = 52,844,554.14
  5. Step 5: Solve for x
    x = 52,844,554.14/11,760.66
  6. Step 6: Final answer
    x = 4,493.33

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Double scale
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Similar ratio
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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.