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Finding the Fourth Proportional to 33,428.91, 50,143.41 and 13,703.91

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Solution

The fourth proportional to 33,428.91, 50,143.41 and 13,703.91 is: 20,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428.91 : 50,143.41 = 13,703.91 : x
  2. Step 2: Convert to fraction form
    33,428.91/50,143.41 = 13,703.91/x
  3. Step 3: Cross multiply
    33,428.91x = 50,143.41 × 13,703.91
  4. Step 4: Simplify right side
    33,428.91x = 687,160,777.73
  5. Step 5: Solve for x
    x = 687,160,777.73/33,428.91
  6. Step 6: Final answer
    x = 20,555.88

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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.