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Finding the Fourth Proportional to 6,787.27, 9,371.01 and 4,238.92

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Solution

The fourth proportional to 6,787.27, 9,371.01 and 4,238.92 is: 5,852.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.27 : 9,371.01 = 4,238.92 : x
  2. Step 2: Convert to fraction form
    6,787.27/9,371.01 = 4,238.92/x
  3. Step 3: Cross multiply
    6,787.27x = 9,371.01 × 4,238.92
  4. Step 4: Simplify right side
    6,787.27x = 39,722,893.66
  5. Step 5: Solve for x
    x = 39,722,893.66/6,787.27
  6. Step 6: Final answer
    x = 5,852.56

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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.