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Finding the Fourth Proportional to 11,311.64, 16,967.46 and 3,520.46

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Solution

The fourth proportional to 11,311.64, 16,967.46 and 3,520.46 is: 5,280.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.64 : 16,967.46 = 3,520.46 : x
  2. Step 2: Convert to fraction form
    11,311.64/16,967.46 = 3,520.46/x
  3. Step 3: Cross multiply
    11,311.64x = 16,967.46 × 3,520.46
  4. Step 4: Simplify right side
    11,311.64x = 59,733,179.39
  5. Step 5: Solve for x
    x = 59,733,179.39/11,311.64
  6. Step 6: Final answer
    x = 5,280.68

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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.