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Finding the Fourth Proportional to 13,994.73, 20,882.46 and 12,523.77

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Solution

The fourth proportional to 13,994.73, 20,882.46 and 12,523.77 is: 18,687.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.73 : 20,882.46 = 12,523.77 : x
  2. Step 2: Convert to fraction form
    13,994.73/20,882.46 = 12,523.77/x
  3. Step 3: Cross multiply
    13,994.73x = 20,882.46 × 12,523.77
  4. Step 4: Simplify right side
    13,994.73x = 261,527,126.07
  5. Step 5: Solve for x
    x = 261,527,126.07/13,994.73
  6. Step 6: Final answer
    x = 18,687.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.