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Finding the Fourth Proportional to 69,953.88, 104,961.81 and 36,666.03

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Solution

The fourth proportional to 69,953.88, 104,961.81 and 36,666.03 is: 55,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,953.88 : 104,961.81 = 36,666.03 : x
  2. Step 2: Convert to fraction form
    69,953.88/104,961.81 = 36,666.03/x
  3. Step 3: Cross multiply
    69,953.88x = 104,961.81 × 36,666.03
  4. Step 4: Simplify right side
    69,953.88x = 3,848,532,874.31
  5. Step 5: Solve for x
    x = 3,848,532,874.31/69,953.88
  6. Step 6: Final answer
    x = 55,015.29

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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.