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Finding the Fourth Proportional to 3,532.74, 5,299.11 and 935.66

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Solution

The fourth proportional to 3,532.74, 5,299.11 and 935.66 is: 1,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,532.74 : 5,299.11 = 935.66 : x
  2. Step 2: Convert to fraction form
    3,532.74/5,299.11 = 935.66/x
  3. Step 3: Cross multiply
    3,532.74x = 5,299.11 × 935.66
  4. Step 4: Simplify right side
    3,532.74x = 4,958,138.77
  5. Step 5: Solve for x
    x = 4,958,138.77/3,532.74
  6. Step 6: Final answer
    x = 1,403.48

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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.