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Finding the Fourth Proportional to 7,083.44, 10,631.88 and 3,189.68

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Solution

The fourth proportional to 7,083.44, 10,631.88 and 3,189.68 is: 4,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.44 : 10,631.88 = 3,189.68 : x
  2. Step 2: Convert to fraction form
    7,083.44/10,631.88 = 3,189.68/x
  3. Step 3: Cross multiply
    7,083.44x = 10,631.88 × 3,189.68
  4. Step 4: Simplify right side
    7,083.44x = 33,912,295.00
  5. Step 5: Solve for x
    x = 33,912,295.00/7,083.44
  6. Step 6: Final answer
    x = 4,787.55

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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.