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Finding the Fourth Proportional to 12,608.33, 18,912.50 and 3,843.17

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Solution

The fourth proportional to 12,608.33, 18,912.50 and 3,843.17 is: 5,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.33 : 18,912.50 = 3,843.17 : x
  2. Step 2: Convert to fraction form
    12,608.33/18,912.50 = 3,843.17/x
  3. Step 3: Cross multiply
    12,608.33x = 18,912.50 × 3,843.17
  4. Step 4: Simplify right side
    12,608.33x = 72,683,952.63
  5. Step 5: Solve for x
    x = 72,683,952.63/12,608.33
  6. Step 6: Final answer
    x = 5,764.76

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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.