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Finding the Fourth Proportional to 18,797.55, 25,940.61 and 10,839.66

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Solution

The fourth proportional to 18,797.55, 25,940.61 and 10,839.66 is: 14,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.55 : 25,940.61 = 10,839.66 : x
  2. Step 2: Convert to fraction form
    18,797.55/25,940.61 = 10,839.66/x
  3. Step 3: Cross multiply
    18,797.55x = 25,940.61 × 10,839.66
  4. Step 4: Simplify right side
    18,797.55x = 281,187,392.59
  5. Step 5: Solve for x
    x = 281,187,392.59/18,797.55
  6. Step 6: Final answer
    x = 14,958.73

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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.