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Finding the Fourth Proportional to 18,017.96, 27,027.14 and 14,146.97

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Solution

The fourth proportional to 18,017.96, 27,027.14 and 14,146.97 is: 21,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017.96 : 27,027.14 = 14,146.97 : x
  2. Step 2: Convert to fraction form
    18,017.96/27,027.14 = 14,146.97/x
  3. Step 3: Cross multiply
    18,017.96x = 27,027.14 × 14,146.97
  4. Step 4: Simplify right side
    18,017.96x = 382,351,932.90
  5. Step 5: Solve for x
    x = 382,351,932.90/18,017.96
  6. Step 6: Final answer
    x = 21,220.61

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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.