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Finding the Fourth Proportional to 33,306.32, 49,978.36 and 12,243.62

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Solution

The fourth proportional to 33,306.32, 49,978.36 and 12,243.62 is: 18,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,306.32 : 49,978.36 = 12,243.62 : x
  2. Step 2: Convert to fraction form
    33,306.32/49,978.36 = 12,243.62/x
  3. Step 3: Cross multiply
    33,306.32x = 49,978.36 × 12,243.62
  4. Step 4: Simplify right side
    33,306.32x = 611,916,048.06
  5. Step 5: Solve for x
    x = 611,916,048.06/33,306.32
  6. Step 6: Final answer
    x = 18,372.37

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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.