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Finding the Fourth Proportional to 18,396.64, 27,594.96 and 8,008.39

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Solution

The fourth proportional to 18,396.64, 27,594.96 and 8,008.39 is: 12,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.64 : 27,594.96 = 8,008.39 : x
  2. Step 2: Convert to fraction form
    18,396.64/27,594.96 = 8,008.39/x
  3. Step 3: Cross multiply
    18,396.64x = 27,594.96 × 8,008.39
  4. Step 4: Simplify right side
    18,396.64x = 220,991,201.71
  5. Step 5: Solve for x
    x = 220,991,201.71/18,396.64
  6. Step 6: Final answer
    x = 12,012.59

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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.