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Finding the Fourth Proportional to 60,996.26, 91,471.63 and 21,003.95

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Solution

The fourth proportional to 60,996.26, 91,471.63 and 21,003.95 is: 31,498.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,996.26 : 91,471.63 = 21,003.95 : x
  2. Step 2: Convert to fraction form
    60,996.26/91,471.63 = 21,003.95/x
  3. Step 3: Cross multiply
    60,996.26x = 91,471.63 × 21,003.95
  4. Step 4: Simplify right side
    60,996.26x = 1,921,265,542.94
  5. Step 5: Solve for x
    x = 1,921,265,542.94/60,996.26
  6. Step 6: Final answer
    x = 31,498.09

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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.