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Finding the Fourth Proportional to 47,223.45, 70,787.84 and 21,940.73

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Solution

The fourth proportional to 47,223.45, 70,787.84 and 21,940.73 is: 32,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,223.45 : 70,787.84 = 21,940.73 : x
  2. Step 2: Convert to fraction form
    47,223.45/70,787.84 = 21,940.73/x
  3. Step 3: Cross multiply
    47,223.45x = 70,787.84 × 21,940.73
  4. Step 4: Simplify right side
    47,223.45x = 1,553,136,421.08
  5. Step 5: Solve for x
    x = 1,553,136,421.08/47,223.45
  6. Step 6: Final answer
    x = 32,889.09

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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.