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Finding the Fourth Proportional to 62,521.47, 93,791.95 and 20,958.75

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Solution

The fourth proportional to 62,521.47, 93,791.95 and 20,958.75 is: 31,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,521.47 : 93,791.95 = 20,958.75 : x
  2. Step 2: Convert to fraction form
    62,521.47/93,791.95 = 20,958.75/x
  3. Step 3: Cross multiply
    62,521.47x = 93,791.95 × 20,958.75
  4. Step 4: Simplify right side
    62,521.47x = 1,965,761,979.67
  5. Step 5: Solve for x
    x = 1,965,761,979.67/62,521.47
  6. Step 6: Final answer
    x = 31,441.39

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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.