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Finding the Fourth Proportional to 10,797.13, 14,906.93 and 8,812.43

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Solution

The fourth proportional to 10,797.13, 14,906.93 and 8,812.43 is: 12,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,797.13 : 14,906.93 = 8,812.43 : x
  2. Step 2: Convert to fraction form
    10,797.13/14,906.93 = 8,812.43/x
  3. Step 3: Cross multiply
    10,797.13x = 14,906.93 × 8,812.43
  4. Step 4: Simplify right side
    10,797.13x = 131,366,277.14
  5. Step 5: Solve for x
    x = 131,366,277.14/10,797.13
  6. Step 6: Final answer
    x = 12,166.78

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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.