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Finding the Fourth Proportional to 8,195.76, 12,295.08 and 2,650.32

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Solution

The fourth proportional to 8,195.76, 12,295.08 and 2,650.32 is: 3,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,195.76 : 12,295.08 = 2,650.32 : x
  2. Step 2: Convert to fraction form
    8,195.76/12,295.08 = 2,650.32/x
  3. Step 3: Cross multiply
    8,195.76x = 12,295.08 × 2,650.32
  4. Step 4: Simplify right side
    8,195.76x = 32,585,896.43
  5. Step 5: Solve for x
    x = 32,585,896.43/8,195.76
  6. Step 6: Final answer
    x = 3,975.95

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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.