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Finding the Fourth Proportional to 8,716.43, 13,073.27 and 7,245.11

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Solution

The fourth proportional to 8,716.43, 13,073.27 and 7,245.11 is: 10,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.43 : 13,073.27 = 7,245.11 : x
  2. Step 2: Convert to fraction form
    8,716.43/13,073.27 = 7,245.11/x
  3. Step 3: Cross multiply
    8,716.43x = 13,073.27 × 7,245.11
  4. Step 4: Simplify right side
    8,716.43x = 94,717,231.96
  5. Step 5: Solve for x
    x = 94,717,231.96/8,716.43
  6. Step 6: Final answer
    x = 10,866.51

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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.