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Finding the Fourth Proportional to 12,137.99, 18,206.78 and 5,896.94

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Solution

The fourth proportional to 12,137.99, 18,206.78 and 5,896.94 is: 8,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.99 : 18,206.78 = 5,896.94 : x
  2. Step 2: Convert to fraction form
    12,137.99/18,206.78 = 5,896.94/x
  3. Step 3: Cross multiply
    12,137.99x = 18,206.78 × 5,896.94
  4. Step 4: Simplify right side
    12,137.99x = 107,364,168.73
  5. Step 5: Solve for x
    x = 107,364,168.73/12,137.99
  6. Step 6: Final answer
    x = 8,845.30

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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.