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Finding the Fourth Proportional to 18,383.97, 25,384.41 and 12,014.94

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Solution

The fourth proportional to 18,383.97, 25,384.41 and 12,014.94 is: 16,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.97 : 25,384.41 = 12,014.94 : x
  2. Step 2: Convert to fraction form
    18,383.97/25,384.41 = 12,014.94/x
  3. Step 3: Cross multiply
    18,383.97x = 25,384.41 × 12,014.94
  4. Step 4: Simplify right side
    18,383.97x = 304,992,163.09
  5. Step 5: Solve for x
    x = 304,992,163.09/18,383.97
  6. Step 6: Final answer
    x = 16,590.11

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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.