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Finding the Fourth Proportional to 6,321.48, 8,724.46 and 3,804.95

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Solution

The fourth proportional to 6,321.48, 8,724.46 and 3,804.95 is: 5,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.48 : 8,724.46 = 3,804.95 : x
  2. Step 2: Convert to fraction form
    6,321.48/8,724.46 = 3,804.95/x
  3. Step 3: Cross multiply
    6,321.48x = 8,724.46 × 3,804.95
  4. Step 4: Simplify right side
    6,321.48x = 33,196,149.73
  5. Step 5: Solve for x
    x = 33,196,149.73/6,321.48
  6. Step 6: Final answer
    x = 5,251.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.