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Finding the Fourth Proportional to 61,086.62, 91,629.94 and 16,711.58

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Solution

The fourth proportional to 61,086.62, 91,629.94 and 16,711.58 is: 25,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,086.62 : 91,629.94 = 16,711.58 : x
  2. Step 2: Convert to fraction form
    61,086.62/91,629.94 = 16,711.58/x
  3. Step 3: Cross multiply
    61,086.62x = 91,629.94 × 16,711.58
  4. Step 4: Simplify right side
    61,086.62x = 1,531,281,072.71
  5. Step 5: Solve for x
    x = 1,531,281,072.71/61,086.62
  6. Step 6: Final answer
    x = 25,067.37

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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.