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Finding the Fourth Proportional to 8,771.02, 12,103.46 and 4,791.32

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Solution

The fourth proportional to 8,771.02, 12,103.46 and 4,791.32 is: 6,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.02 : 12,103.46 = 4,791.32 : x
  2. Step 2: Convert to fraction form
    8,771.02/12,103.46 = 4,791.32/x
  3. Step 3: Cross multiply
    8,771.02x = 12,103.46 × 4,791.32
  4. Step 4: Simplify right side
    8,771.02x = 57,991,549.97
  5. Step 5: Solve for x
    x = 57,991,549.97/8,771.02
  6. Step 6: Final answer
    x = 6,611.72

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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.