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Finding the Fourth Proportional to 8,481.64, 12,723.74 and 2,936.36

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Solution

The fourth proportional to 8,481.64, 12,723.74 and 2,936.36 is: 4,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.64 : 12,723.74 = 2,936.36 : x
  2. Step 2: Convert to fraction form
    8,481.64/12,723.74 = 2,936.36/x
  3. Step 3: Cross multiply
    8,481.64x = 12,723.74 × 2,936.36
  4. Step 4: Simplify right side
    8,481.64x = 37,361,481.19
  5. Step 5: Solve for x
    x = 37,361,481.19/8,481.64
  6. Step 6: Final answer
    x = 4,404.98

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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.