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Finding the Fourth Proportional to 13,609.68, 18,797.21 and 10,893.67

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Solution

The fourth proportional to 13,609.68, 18,797.21 and 10,893.67 is: 15,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.68 : 18,797.21 = 10,893.67 : x
  2. Step 2: Convert to fraction form
    13,609.68/18,797.21 = 10,893.67/x
  3. Step 3: Cross multiply
    13,609.68x = 18,797.21 × 10,893.67
  4. Step 4: Simplify right side
    13,609.68x = 204,770,602.66
  5. Step 5: Solve for x
    x = 204,770,602.66/13,609.68
  6. Step 6: Final answer
    x = 15,045.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.