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Finding the Fourth Proportional to 69,336.78, 104,018.16 and 27,787.02

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Solution

The fourth proportional to 69,336.78, 104,018.16 and 27,787.02 is: 41,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,336.78 : 104,018.16 = 27,787.02 : x
  2. Step 2: Convert to fraction form
    69,336.78/104,018.16 = 27,787.02/x
  3. Step 3: Cross multiply
    69,336.78x = 104,018.16 × 27,787.02
  4. Step 4: Simplify right side
    69,336.78x = 2,890,354,692.28
  5. Step 5: Solve for x
    x = 2,890,354,692.28/69,336.78
  6. Step 6: Final answer
    x = 41,685.74

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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.