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Finding the Fourth Proportional to 18,754.88, 25,869.54 and 12,029.86

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Solution

The fourth proportional to 18,754.88, 25,869.54 and 12,029.86 is: 16,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.88 : 25,869.54 = 12,029.86 : x
  2. Step 2: Convert to fraction form
    18,754.88/25,869.54 = 12,029.86/x
  3. Step 3: Cross multiply
    18,754.88x = 25,869.54 × 12,029.86
  4. Step 4: Simplify right side
    18,754.88x = 311,206,879.79
  5. Step 5: Solve for x
    x = 311,206,879.79/18,754.88
  6. Step 6: Final answer
    x = 16,593.38

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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.