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Finding the Fourth Proportional to 9,168.16, 13,755.12 and 6,734.56

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Solution

The fourth proportional to 9,168.16, 13,755.12 and 6,734.56 is: 10,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.16 : 13,755.12 = 6,734.56 : x
  2. Step 2: Convert to fraction form
    9,168.16/13,755.12 = 6,734.56/x
  3. Step 3: Cross multiply
    9,168.16x = 13,755.12 × 6,734.56
  4. Step 4: Simplify right side
    9,168.16x = 92,634,680.95
  5. Step 5: Solve for x
    x = 92,634,680.95/9,168.16
  6. Step 6: Final answer
    x = 10,103.96

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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.