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Finding the Fourth Proportional to 18,029.99, 27,037.46 and 8,667.81

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Solution

The fourth proportional to 18,029.99, 27,037.46 and 8,667.81 is: 12,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,029.99 : 27,037.46 = 8,667.81 : x
  2. Step 2: Convert to fraction form
    18,029.99/27,037.46 = 8,667.81/x
  3. Step 3: Cross multiply
    18,029.99x = 27,037.46 × 8,667.81
  4. Step 4: Simplify right side
    18,029.99x = 234,355,587.83
  5. Step 5: Solve for x
    x = 234,355,587.83/18,029.99
  6. Step 6: Final answer
    x = 12,998.10

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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.