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Finding the Fourth Proportional to 10,855.41, 16,285.07 and 3,839.49

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Solution

The fourth proportional to 10,855.41, 16,285.07 and 3,839.49 is: 5,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.41 : 16,285.07 = 3,839.49 : x
  2. Step 2: Convert to fraction form
    10,855.41/16,285.07 = 3,839.49/x
  3. Step 3: Cross multiply
    10,855.41x = 16,285.07 × 3,839.49
  4. Step 4: Simplify right side
    10,855.41x = 62,526,344.22
  5. Step 5: Solve for x
    x = 62,526,344.22/10,855.41
  6. Step 6: Final answer
    x = 5,759.92

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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.