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Finding the Fourth Proportional to 33,235.80, 49,836.60 and 9,859.20

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Solution

The fourth proportional to 33,235.80, 49,836.60 and 9,859.20 is: 14,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,235.80 : 49,836.60 = 9,859.20 : x
  2. Step 2: Convert to fraction form
    33,235.80/49,836.60 = 9,859.20/x
  3. Step 3: Cross multiply
    33,235.80x = 49,836.60 × 9,859.20
  4. Step 4: Simplify right side
    33,235.80x = 491,349,006.72
  5. Step 5: Solve for x
    x = 491,349,006.72/33,235.80
  6. Step 6: Final answer
    x = 14,783.73

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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.