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Finding the Fourth Proportional to 48,787.44, 73,297.92 and 31,291.44

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Solution

The fourth proportional to 48,787.44, 73,297.92 and 31,291.44 is: 47,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,787.44 : 73,297.92 = 31,291.44 : x
  2. Step 2: Convert to fraction form
    48,787.44/73,297.92 = 31,291.44/x
  3. Step 3: Cross multiply
    48,787.44x = 73,297.92 × 31,291.44
  4. Step 4: Simplify right side
    48,787.44x = 2,293,597,465.80
  5. Step 5: Solve for x
    x = 2,293,597,465.80/48,787.44
  6. Step 6: Final answer
    x = 47,012.05

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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.