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Finding the Fourth Proportional to 69,951.58, 104,958.36 and 36,663.72

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Solution

The fourth proportional to 69,951.58, 104,958.36 and 36,663.72 is: 55,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,951.58 : 104,958.36 = 36,663.72 : x
  2. Step 2: Convert to fraction form
    69,951.58/104,958.36 = 36,663.72/x
  3. Step 3: Cross multiply
    69,951.58x = 104,958.36 × 36,663.72
  4. Step 4: Simplify right side
    69,951.58x = 3,848,163,922.70
  5. Step 5: Solve for x
    x = 3,848,163,922.70/69,951.58
  6. Step 6: Final answer
    x = 55,011.82

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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.