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Finding the Fourth Proportional to 67,371.73, 101,043.48 and 19,987.27

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Solution

The fourth proportional to 67,371.73, 101,043.48 and 19,987.27 is: 29,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,371.73 : 101,043.48 = 19,987.27 : x
  2. Step 2: Convert to fraction form
    67,371.73/101,043.48 = 19,987.27/x
  3. Step 3: Cross multiply
    67,371.73x = 101,043.48 × 19,987.27
  4. Step 4: Simplify right side
    67,371.73x = 2,019,583,138.84
  5. Step 5: Solve for x
    x = 2,019,583,138.84/67,371.73
  6. Step 6: Final answer
    x = 29,976.72

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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.