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Finding the Fourth Proportional to 62,859.82, 94,292.66 and 20,743.60

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Solution

The fourth proportional to 62,859.82, 94,292.66 and 20,743.60 is: 31,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,859.82 : 94,292.66 = 20,743.60 : x
  2. Step 2: Convert to fraction form
    62,859.82/94,292.66 = 20,743.60/x
  3. Step 3: Cross multiply
    62,859.82x = 94,292.66 × 20,743.60
  4. Step 4: Simplify right side
    62,859.82x = 1,955,969,221.98
  5. Step 5: Solve for x
    x = 1,955,969,221.98/62,859.82
  6. Step 6: Final answer
    x = 31,116.37

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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.