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Finding the Fourth Proportional to 8,963.64, 13,434.12 and 3,763.44

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Solution

The fourth proportional to 8,963.64, 13,434.12 and 3,763.44 is: 5,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.64 : 13,434.12 = 3,763.44 : x
  2. Step 2: Convert to fraction form
    8,963.64/13,434.12 = 3,763.44/x
  3. Step 3: Cross multiply
    8,963.64x = 13,434.12 × 3,763.44
  4. Step 4: Simplify right side
    8,963.64x = 50,558,504.57
  5. Step 5: Solve for x
    x = 50,558,504.57/8,963.64
  6. Step 6: Final answer
    x = 5,640.40

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1.5x scale

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.