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Finding the Fourth Proportional to 48,843.15, 73,275.54 and 20,787.03

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Solution

The fourth proportional to 48,843.15, 73,275.54 and 20,787.03 is: 31,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,843.15 : 73,275.54 = 20,787.03 : x
  2. Step 2: Convert to fraction form
    48,843.15/73,275.54 = 20,787.03/x
  3. Step 3: Cross multiply
    48,843.15x = 73,275.54 × 20,787.03
  4. Step 4: Simplify right side
    48,843.15x = 1,523,180,770.29
  5. Step 5: Solve for x
    x = 1,523,180,770.29/48,843.15
  6. Step 6: Final answer
    x = 31,185.14

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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.