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Finding the Fourth Proportional to 33,915.47, 50,844.49 and 12,843.89

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Solution

The fourth proportional to 33,915.47, 50,844.49 and 12,843.89 is: 19,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,915.47 : 50,844.49 = 12,843.89 : x
  2. Step 2: Convert to fraction form
    33,915.47/50,844.49 = 12,843.89/x
  3. Step 3: Cross multiply
    33,915.47x = 50,844.49 × 12,843.89
  4. Step 4: Simplify right side
    33,915.47x = 653,040,941.00
  5. Step 5: Solve for x
    x = 653,040,941.00/33,915.47
  6. Step 6: Final answer
    x = 19,254.96

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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.