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Finding the Fourth Proportional to 65,891.93, 90,930.47 and 35,676.62

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Solution

The fourth proportional to 65,891.93, 90,930.47 and 35,676.62 is: 49,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,891.93 : 90,930.47 = 35,676.62 : x
  2. Step 2: Convert to fraction form
    65,891.93/90,930.47 = 35,676.62/x
  3. Step 3: Cross multiply
    65,891.93x = 90,930.47 × 35,676.62
  4. Step 4: Simplify right side
    65,891.93x = 3,244,092,244.73
  5. Step 5: Solve for x
    x = 3,244,092,244.73/65,891.93
  6. Step 6: Final answer
    x = 49,233.53

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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.