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Finding the Fourth Proportional to 49,787.88, 74,655.90 and 14,722.80

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Solution

The fourth proportional to 49,787.88, 74,655.90 and 14,722.80 is: 22,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,787.88 : 74,655.90 = 14,722.80 : x
  2. Step 2: Convert to fraction form
    49,787.88/74,655.90 = 14,722.80/x
  3. Step 3: Cross multiply
    49,787.88x = 74,655.90 × 14,722.80
  4. Step 4: Simplify right side
    49,787.88x = 1,099,143,884.52
  5. Step 5: Solve for x
    x = 1,099,143,884.52/49,787.88
  6. Step 6: Final answer
    x = 22,076.54

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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.