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Finding the Fourth Proportional to 8,162.64, 12,247.74 and 2,901.62

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Solution

The fourth proportional to 8,162.64, 12,247.74 and 2,901.62 is: 4,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.64 : 12,247.74 = 2,901.62 : x
  2. Step 2: Convert to fraction form
    8,162.64/12,247.74 = 2,901.62/x
  3. Step 3: Cross multiply
    8,162.64x = 12,247.74 × 2,901.62
  4. Step 4: Simplify right side
    8,162.64x = 35,538,317.96
  5. Step 5: Solve for x
    x = 35,538,317.96/8,162.64
  6. Step 6: Final answer
    x = 4,353.78

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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.