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Finding the Fourth Proportional to 8,353.92, 12,530.88 and 2,515.04

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Solution

The fourth proportional to 8,353.92, 12,530.88 and 2,515.04 is: 3,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.92 : 12,530.88 = 2,515.04 : x
  2. Step 2: Convert to fraction form
    8,353.92/12,530.88 = 2,515.04/x
  3. Step 3: Cross multiply
    8,353.92x = 12,530.88 × 2,515.04
  4. Step 4: Simplify right side
    8,353.92x = 31,515,664.44
  5. Step 5: Solve for x
    x = 31,515,664.44/8,353.92
  6. Step 6: Final answer
    x = 3,772.56

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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.