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Finding the Fourth Proportional to 57,690.69, 86,536.07 and 22,640.37

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Solution

The fourth proportional to 57,690.69, 86,536.07 and 22,640.37 is: 33,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,690.69 : 86,536.07 = 22,640.37 : x
  2. Step 2: Convert to fraction form
    57,690.69/86,536.07 = 22,640.37/x
  3. Step 3: Cross multiply
    57,690.69x = 86,536.07 × 22,640.37
  4. Step 4: Simplify right side
    57,690.69x = 1,959,208,529.94
  5. Step 5: Solve for x
    x = 1,959,208,529.94/57,690.69
  6. Step 6: Final answer
    x = 33,960.57

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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.