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Finding the Fourth Proportional to 33,347.70, 49,912.20 and 25,911.90

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Solution

The fourth proportional to 33,347.70, 49,912.20 and 25,911.90 is: 38,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,347.70 : 49,912.20 = 25,911.90 : x
  2. Step 2: Convert to fraction form
    33,347.70/49,912.20 = 25,911.90/x
  3. Step 3: Cross multiply
    33,347.70x = 49,912.20 × 25,911.90
  4. Step 4: Simplify right side
    33,347.70x = 1,293,319,935.18
  5. Step 5: Solve for x
    x = 1,293,319,935.18/33,347.70
  6. Step 6: Final answer
    x = 38,782.88

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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.