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Finding the Fourth Proportional to 18,314.85, 27,472.41 and 12,114.03

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Solution

The fourth proportional to 18,314.85, 27,472.41 and 12,114.03 is: 18,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.85 : 27,472.41 = 12,114.03 : x
  2. Step 2: Convert to fraction form
    18,314.85/27,472.41 = 12,114.03/x
  3. Step 3: Cross multiply
    18,314.85x = 27,472.41 × 12,114.03
  4. Step 4: Simplify right side
    18,314.85x = 332,801,598.91
  5. Step 5: Solve for x
    x = 332,801,598.91/18,314.85
  6. Step 6: Final answer
    x = 18,171.13

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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.