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Finding the Fourth Proportional to 18,004.05, 24,846.99 and 9,939.29

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Solution

The fourth proportional to 18,004.05, 24,846.99 and 9,939.29 is: 13,716.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.05 : 24,846.99 = 9,939.29 : x
  2. Step 2: Convert to fraction form
    18,004.05/24,846.99 = 9,939.29/x
  3. Step 3: Cross multiply
    18,004.05x = 24,846.99 × 9,939.29
  4. Step 4: Simplify right side
    18,004.05x = 246,961,439.24
  5. Step 5: Solve for x
    x = 246,961,439.24/18,004.05
  6. Step 6: Final answer
    x = 13,716.99

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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.