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Finding the Fourth Proportional to 18,817.53, 28,224.84 and 6,965.73

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Solution

The fourth proportional to 18,817.53, 28,224.84 and 6,965.73 is: 10,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.53 : 28,224.84 = 6,965.73 : x
  2. Step 2: Convert to fraction form
    18,817.53/28,224.84 = 6,965.73/x
  3. Step 3: Cross multiply
    18,817.53x = 28,224.84 × 6,965.73
  4. Step 4: Simplify right side
    18,817.53x = 196,606,614.73
  5. Step 5: Solve for x
    x = 196,606,614.73/18,817.53
  6. Step 6: Final answer
    x = 10,448.06

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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.