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Finding the Fourth Proportional to 11,361.04, 15,674.64 and 8,963.44

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Solution

The fourth proportional to 11,361.04, 15,674.64 and 8,963.44 is: 12,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.04 : 15,674.64 = 8,963.44 : x
  2. Step 2: Convert to fraction form
    11,361.04/15,674.64 = 8,963.44/x
  3. Step 3: Cross multiply
    11,361.04x = 15,674.64 × 8,963.44
  4. Step 4: Simplify right side
    11,361.04x = 140,498,695.16
  5. Step 5: Solve for x
    x = 140,498,695.16/11,361.04
  6. Step 6: Final answer
    x = 12,366.71

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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.