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Finding the Fourth Proportional to 18,039.96, 27,032.01 and 12,504.12

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Solution

The fourth proportional to 18,039.96, 27,032.01 and 12,504.12 is: 18,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.96 : 27,032.01 = 12,504.12 : x
  2. Step 2: Convert to fraction form
    18,039.96/27,032.01 = 12,504.12/x
  3. Step 3: Cross multiply
    18,039.96x = 27,032.01 × 12,504.12
  4. Step 4: Simplify right side
    18,039.96x = 338,011,496.88
  5. Step 5: Solve for x
    x = 338,011,496.88/18,039.96
  6. Step 6: Final answer
    x = 18,736.82

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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.