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Finding the Fourth Proportional to 16,791.37, 25,187.06 and 6,919.80

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Solution

The fourth proportional to 16,791.37, 25,187.06 and 6,919.80 is: 10,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,791.37 : 25,187.06 = 6,919.80 : x
  2. Step 2: Convert to fraction form
    16,791.37/25,187.06 = 6,919.80/x
  3. Step 3: Cross multiply
    16,791.37x = 25,187.06 × 6,919.80
  4. Step 4: Simplify right side
    16,791.37x = 174,289,417.79
  5. Step 5: Solve for x
    x = 174,289,417.79/16,791.37
  6. Step 6: Final answer
    x = 10,379.70

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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.