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Finding the Fourth Proportional to 33,900.20, 50,862.50 and 11,715.82

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Solution

The fourth proportional to 33,900.20, 50,862.50 and 11,715.82 is: 17,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,900.20 : 50,862.50 = 11,715.82 : x
  2. Step 2: Convert to fraction form
    33,900.20/50,862.50 = 11,715.82/x
  3. Step 3: Cross multiply
    33,900.20x = 50,862.50 × 11,715.82
  4. Step 4: Simplify right side
    33,900.20x = 595,895,894.75
  5. Step 5: Solve for x
    x = 595,895,894.75/33,900.20
  6. Step 6: Final answer
    x = 17,577.95

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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.