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Finding the Fourth Proportional to 19,651.36, 29,481.90 and 9,260.68

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Solution

The fourth proportional to 19,651.36, 29,481.90 and 9,260.68 is: 13,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.36 : 29,481.90 = 9,260.68 : x
  2. Step 2: Convert to fraction form
    19,651.36/29,481.90 = 9,260.68/x
  3. Step 3: Cross multiply
    19,651.36x = 29,481.90 × 9,260.68
  4. Step 4: Simplify right side
    19,651.36x = 273,022,441.69
  5. Step 5: Solve for x
    x = 273,022,441.69/19,651.36
  6. Step 6: Final answer
    x = 13,893.31

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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.