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Finding the Fourth Proportional to 48,787.50, 73,181.43 and 11,851.50

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Solution

The fourth proportional to 48,787.50, 73,181.43 and 11,851.50 is: 17,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,787.50 : 73,181.43 = 11,851.50 : x
  2. Step 2: Convert to fraction form
    48,787.50/73,181.43 = 11,851.50/x
  3. Step 3: Cross multiply
    48,787.50x = 73,181.43 × 11,851.50
  4. Step 4: Simplify right side
    48,787.50x = 867,309,717.65
  5. Step 5: Solve for x
    x = 867,309,717.65/48,787.50
  6. Step 6: Final answer
    x = 17,777.29

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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.