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Finding the Fourth Proportional to 18,589.64, 27,885.74 and 7,496.43

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Solution

The fourth proportional to 18,589.64, 27,885.74 and 7,496.43 is: 11,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.64 : 27,885.74 = 7,496.43 : x
  2. Step 2: Convert to fraction form
    18,589.64/27,885.74 = 7,496.43/x
  3. Step 3: Cross multiply
    18,589.64x = 27,885.74 × 7,496.43
  4. Step 4: Simplify right side
    18,589.64x = 209,043,355.85
  5. Step 5: Solve for x
    x = 209,043,355.85/18,589.64
  6. Step 6: Final answer
    x = 11,245.16

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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.