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Finding the Fourth Proportional to 13,394.16, 18,487.44 and 8,093.12

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Solution

The fourth proportional to 13,394.16, 18,487.44 and 8,093.12 is: 11,170.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.16 : 18,487.44 = 8,093.12 : x
  2. Step 2: Convert to fraction form
    13,394.16/18,487.44 = 8,093.12/x
  3. Step 3: Cross multiply
    13,394.16x = 18,487.44 × 8,093.12
  4. Step 4: Simplify right side
    13,394.16x = 149,620,977.98
  5. Step 5: Solve for x
    x = 149,620,977.98/13,394.16
  6. Step 6: Final answer
    x = 11,170.61

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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.