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Finding the Fourth Proportional to 13,093.54, 19,640.76 and 5,197.54

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Solution

The fourth proportional to 13,093.54, 19,640.76 and 5,197.54 is: 7,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.54 : 19,640.76 = 5,197.54 : x
  2. Step 2: Convert to fraction form
    13,093.54/19,640.76 = 5,197.54/x
  3. Step 3: Cross multiply
    13,093.54x = 19,640.76 × 5,197.54
  4. Step 4: Simplify right side
    13,093.54x = 102,083,635.73
  5. Step 5: Solve for x
    x = 102,083,635.73/13,093.54
  6. Step 6: Final answer
    x = 7,796.49

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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.