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Finding the Fourth Proportional to 67,967.74, 101,951.60 and 21,224.62

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Solution

The fourth proportional to 67,967.74, 101,951.60 and 21,224.62 is: 31,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,967.74 : 101,951.60 = 21,224.62 : x
  2. Step 2: Convert to fraction form
    67,967.74/101,951.60 = 21,224.62/x
  3. Step 3: Cross multiply
    67,967.74x = 101,951.60 × 21,224.62
  4. Step 4: Simplify right side
    67,967.74x = 2,163,883,968.39
  5. Step 5: Solve for x
    x = 2,163,883,968.39/67,967.74
  6. Step 6: Final answer
    x = 31,836.93

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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.