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Finding the Fourth Proportional to 3,787.66, 5,226.63 and 2,793.49

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Solution

The fourth proportional to 3,787.66, 5,226.63 and 2,793.49 is: 3,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.66 : 5,226.63 = 2,793.49 : x
  2. Step 2: Convert to fraction form
    3,787.66/5,226.63 = 2,793.49/x
  3. Step 3: Cross multiply
    3,787.66x = 5,226.63 × 2,793.49
  4. Step 4: Simplify right side
    3,787.66x = 14,600,515.10
  5. Step 5: Solve for x
    x = 14,600,515.10/3,787.66
  6. Step 6: Final answer
    x = 3,854.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.