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Finding the Fourth Proportional to 18,349.32, 27,486.92 and 12,093.90

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Solution

The fourth proportional to 18,349.32, 27,486.92 and 12,093.90 is: 18,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.32 : 27,486.92 = 12,093.90 : x
  2. Step 2: Convert to fraction form
    18,349.32/27,486.92 = 12,093.90/x
  3. Step 3: Cross multiply
    18,349.32x = 27,486.92 × 12,093.90
  4. Step 4: Simplify right side
    18,349.32x = 332,424,061.79
  5. Step 5: Solve for x
    x = 332,424,061.79/18,349.32
  6. Step 6: Final answer
    x = 18,116.42

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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.