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Finding the Fourth Proportional to 65,894.15, 90,940.44 and 37,604.09

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Solution

The fourth proportional to 65,894.15, 90,940.44 and 37,604.09 is: 51,897.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,894.15 : 90,940.44 = 37,604.09 : x
  2. Step 2: Convert to fraction form
    65,894.15/90,940.44 = 37,604.09/x
  3. Step 3: Cross multiply
    65,894.15x = 90,940.44 × 37,604.09
  4. Step 4: Simplify right side
    65,894.15x = 3,419,732,035.70
  5. Step 5: Solve for x
    x = 3,419,732,035.70/65,894.15
  6. Step 6: Final answer
    x = 51,897.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.