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Finding the Fourth Proportional to 18,105.66, 24,986.79 and 10,150.44

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Solution

The fourth proportional to 18,105.66, 24,986.79 and 10,150.44 is: 14,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.66 : 24,986.79 = 10,150.44 : x
  2. Step 2: Convert to fraction form
    18,105.66/24,986.79 = 10,150.44/x
  3. Step 3: Cross multiply
    18,105.66x = 24,986.79 × 10,150.44
  4. Step 4: Simplify right side
    18,105.66x = 253,626,912.69
  5. Step 5: Solve for x
    x = 253,626,912.69/18,105.66
  6. Step 6: Final answer
    x = 14,008.16

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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.