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Finding the Fourth Proportional to 33,687.66, 50,522.84 and 9,989.64

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Solution

The fourth proportional to 33,687.66, 50,522.84 and 9,989.64 is: 14,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,687.66 : 50,522.84 = 9,989.64 : x
  2. Step 2: Convert to fraction form
    33,687.66/50,522.84 = 9,989.64/x
  3. Step 3: Cross multiply
    33,687.66x = 50,522.84 × 9,989.64
  4. Step 4: Simplify right side
    33,687.66x = 504,704,983.38
  5. Step 5: Solve for x
    x = 504,704,983.38/33,687.66
  6. Step 6: Final answer
    x = 14,981.89

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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.