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Finding the Fourth Proportional to 69,953.89, 104,961.75 and 36,665.99

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Solution

The fourth proportional to 69,953.89, 104,961.75 and 36,665.99 is: 55,015.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,953.89 : 104,961.75 = 36,665.99 : x
  2. Step 2: Convert to fraction form
    69,953.89/104,961.75 = 36,665.99/x
  3. Step 3: Cross multiply
    69,953.89x = 104,961.75 × 36,665.99
  4. Step 4: Simplify right side
    69,953.89x = 3,848,526,292.55
  5. Step 5: Solve for x
    x = 3,848,526,292.55/69,953.89
  6. Step 6: Final answer
    x = 55,015.19

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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.