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Finding the Fourth Proportional to 18,025.94, 27,042.86 and 6,937.85

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Solution

The fourth proportional to 18,025.94, 27,042.86 and 6,937.85 is: 10,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,025.94 : 27,042.86 = 6,937.85 : x
  2. Step 2: Convert to fraction form
    18,025.94/27,042.86 = 6,937.85/x
  3. Step 3: Cross multiply
    18,025.94x = 27,042.86 × 6,937.85
  4. Step 4: Simplify right side
    18,025.94x = 187,619,391.20
  5. Step 5: Solve for x
    x = 187,619,391.20/18,025.94
  6. Step 6: Final answer
    x = 10,408.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.