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Finding the Fourth Proportional to 33,816.80, 50,725.20 and 13,040.30

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Solution

The fourth proportional to 33,816.80, 50,725.20 and 13,040.30 is: 19,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,816.80 : 50,725.20 = 13,040.30 : x
  2. Step 2: Convert to fraction form
    33,816.80/50,725.20 = 13,040.30/x
  3. Step 3: Cross multiply
    33,816.80x = 50,725.20 × 13,040.30
  4. Step 4: Simplify right side
    33,816.80x = 661,471,825.56
  5. Step 5: Solve for x
    x = 661,471,825.56/33,816.80
  6. Step 6: Final answer
    x = 19,560.45

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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.