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Finding the Fourth Proportional to 10,797.12, 14,906.94 and 8,812.44

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Solution

The fourth proportional to 10,797.12, 14,906.94 and 8,812.44 is: 12,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,797.12 : 14,906.94 = 8,812.44 : x
  2. Step 2: Convert to fraction form
    10,797.12/14,906.94 = 8,812.44/x
  3. Step 3: Cross multiply
    10,797.12x = 14,906.94 × 8,812.44
  4. Step 4: Simplify right side
    10,797.12x = 131,366,514.33
  5. Step 5: Solve for x
    x = 131,366,514.33/10,797.12
  6. Step 6: Final answer
    x = 12,166.81

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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.