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Finding the Fourth Proportional to 5,583.44, 8,375.16 and 2,123.12

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Solution

The fourth proportional to 5,583.44, 8,375.16 and 2,123.12 is: 3,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,583.44 : 8,375.16 = 2,123.12 : x
  2. Step 2: Convert to fraction form
    5,583.44/8,375.16 = 2,123.12/x
  3. Step 3: Cross multiply
    5,583.44x = 8,375.16 × 2,123.12
  4. Step 4: Simplify right side
    5,583.44x = 17,781,469.70
  5. Step 5: Solve for x
    x = 17,781,469.70/5,583.44
  6. Step 6: Final answer
    x = 3,184.68

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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.