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Finding the Fourth Proportional to 18,027.67, 27,023.26 and 8,653.99

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Solution

The fourth proportional to 18,027.67, 27,023.26 and 8,653.99 is: 12,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.67 : 27,023.26 = 8,653.99 : x
  2. Step 2: Convert to fraction form
    18,027.67/27,023.26 = 8,653.99/x
  3. Step 3: Cross multiply
    18,027.67x = 27,023.26 × 8,653.99
  4. Step 4: Simplify right side
    18,027.67x = 233,859,021.81
  5. Step 5: Solve for x
    x = 233,859,021.81/18,027.67
  6. Step 6: Final answer
    x = 12,972.23

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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.