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Finding the Fourth Proportional to 12,757.11, 19,136.03 and 3,523.11

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Solution

The fourth proportional to 12,757.11, 19,136.03 and 3,523.11 is: 5,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.11 : 19,136.03 = 3,523.11 : x
  2. Step 2: Convert to fraction form
    12,757.11/19,136.03 = 3,523.11/x
  3. Step 3: Cross multiply
    12,757.11x = 19,136.03 × 3,523.11
  4. Step 4: Simplify right side
    12,757.11x = 67,418,321.04
  5. Step 5: Solve for x
    x = 67,418,321.04/12,757.11
  6. Step 6: Final answer
    x = 5,284.76

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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.