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Finding the Fourth Proportional to 11,568.16, 15,963.08 and 6,787.61

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Solution

The fourth proportional to 11,568.16, 15,963.08 and 6,787.61 is: 9,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.16 : 15,963.08 = 6,787.61 : x
  2. Step 2: Convert to fraction form
    11,568.16/15,963.08 = 6,787.61/x
  3. Step 3: Cross multiply
    11,568.16x = 15,963.08 × 6,787.61
  4. Step 4: Simplify right side
    11,568.16x = 108,351,161.44
  5. Step 5: Solve for x
    x = 108,351,161.44/11,568.16
  6. Step 6: Final answer
    x = 9,366.33

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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.