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Finding the Fourth Proportional to 7,893.54, 11,844.66 and 3,216.80

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Solution

The fourth proportional to 7,893.54, 11,844.66 and 3,216.80 is: 4,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.54 : 11,844.66 = 3,216.80 : x
  2. Step 2: Convert to fraction form
    7,893.54/11,844.66 = 3,216.80/x
  3. Step 3: Cross multiply
    7,893.54x = 11,844.66 × 3,216.80
  4. Step 4: Simplify right side
    7,893.54x = 38,101,843.06
  5. Step 5: Solve for x
    x = 38,101,843.06/7,893.54
  6. Step 6: Final answer
    x = 4,826.97

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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.