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Finding the Fourth Proportional to 8,912.52, 12,299.13 and 4,933.55

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Solution

The fourth proportional to 8,912.52, 12,299.13 and 4,933.55 is: 6,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.52 : 12,299.13 = 4,933.55 : x
  2. Step 2: Convert to fraction form
    8,912.52/12,299.13 = 4,933.55/x
  3. Step 3: Cross multiply
    8,912.52x = 12,299.13 × 4,933.55
  4. Step 4: Simplify right side
    8,912.52x = 60,678,286.65
  5. Step 5: Solve for x
    x = 60,678,286.65/8,912.52
  6. Step 6: Final answer
    x = 6,808.21

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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.