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Finding the Fourth Proportional to 18,797.42, 25,939.29 and 10,731.99

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Solution

The fourth proportional to 18,797.42, 25,939.29 and 10,731.99 is: 14,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.42 : 25,939.29 = 10,731.99 : x
  2. Step 2: Convert to fraction form
    18,797.42/25,939.29 = 10,731.99/x
  3. Step 3: Cross multiply
    18,797.42x = 25,939.29 × 10,731.99
  4. Step 4: Simplify right side
    18,797.42x = 278,380,278.04
  5. Step 5: Solve for x
    x = 278,380,278.04/18,797.42
  6. Step 6: Final answer
    x = 14,809.50

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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.