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Finding the Fourth Proportional to 40,600.32, 60,891.84 and 12,891.84

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Solution

The fourth proportional to 40,600.32, 60,891.84 and 12,891.84 is: 19,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,600.32 : 60,891.84 = 12,891.84 : x
  2. Step 2: Convert to fraction form
    40,600.32/60,891.84 = 12,891.84/x
  3. Step 3: Cross multiply
    40,600.32x = 60,891.84 × 12,891.84
  4. Step 4: Simplify right side
    40,600.32x = 785,007,858.59
  5. Step 5: Solve for x
    x = 785,007,858.59/40,600.32
  6. Step 6: Final answer
    x = 19,335.02

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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.