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Finding the Fourth Proportional to 67,989.24, 101,960.64 and 25,859.25

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Solution

The fourth proportional to 67,989.24, 101,960.64 and 25,859.25 is: 38,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,989.24 : 101,960.64 = 25,859.25 : x
  2. Step 2: Convert to fraction form
    67,989.24/101,960.64 = 25,859.25/x
  3. Step 3: Cross multiply
    67,989.24x = 101,960.64 × 25,859.25
  4. Step 4: Simplify right side
    67,989.24x = 2,636,625,679.92
  5. Step 5: Solve for x
    x = 2,636,625,679.92/67,989.24
  6. Step 6: Final answer
    x = 38,780.04

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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.