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Finding the Fourth Proportional to 18,992.41, 28,491.85 and 5,844.49

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Solution

The fourth proportional to 18,992.41, 28,491.85 and 5,844.49 is: 8,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.41 : 28,491.85 = 5,844.49 : x
  2. Step 2: Convert to fraction form
    18,992.41/28,491.85 = 5,844.49/x
  3. Step 3: Cross multiply
    18,992.41x = 28,491.85 × 5,844.49
  4. Step 4: Simplify right side
    18,992.41x = 166,520,268.48
  5. Step 5: Solve for x
    x = 166,520,268.48/18,992.41
  6. Step 6: Final answer
    x = 8,767.73

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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.