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Finding the Fourth Proportional to 66,787.80, 100,119.78 and 24,644.64

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Solution

The fourth proportional to 66,787.80, 100,119.78 and 24,644.64 is: 36,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787.80 : 100,119.78 = 24,644.64 : x
  2. Step 2: Convert to fraction form
    66,787.80/100,119.78 = 24,644.64/x
  3. Step 3: Cross multiply
    66,787.80x = 100,119.78 × 24,644.64
  4. Step 4: Simplify right side
    66,787.80x = 2,467,415,934.98
  5. Step 5: Solve for x
    x = 2,467,415,934.98/66,787.80
  6. Step 6: Final answer
    x = 36,944.11

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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.