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Finding the Fourth Proportional to 8,196.80, 12,295.20 and 3,000.56

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Solution

The fourth proportional to 8,196.80, 12,295.20 and 3,000.56 is: 4,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,196.80 : 12,295.20 = 3,000.56 : x
  2. Step 2: Convert to fraction form
    8,196.80/12,295.20 = 3,000.56/x
  3. Step 3: Cross multiply
    8,196.80x = 12,295.20 × 3,000.56
  4. Step 4: Simplify right side
    8,196.80x = 36,892,485.31
  5. Step 5: Solve for x
    x = 36,892,485.31/8,196.80
  6. Step 6: Final answer
    x = 4,500.84

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Half scale
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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.