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Finding the Fourth Proportional to 67,872.58, 101,839.11 and 26,322.82

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Solution

The fourth proportional to 67,872.58, 101,839.11 and 26,322.82 is: 39,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872.58 : 101,839.11 = 26,322.82 : x
  2. Step 2: Convert to fraction form
    67,872.58/101,839.11 = 26,322.82/x
  3. Step 3: Cross multiply
    67,872.58x = 101,839.11 × 26,322.82
  4. Step 4: Simplify right side
    67,872.58x = 2,680,692,561.49
  5. Step 5: Solve for x
    x = 2,680,692,561.49/67,872.58
  6. Step 6: Final answer
    x = 39,495.96

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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.