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Finding the Fourth Proportional to 19,694.21, 29,537.81 and 7,846.99

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Solution

The fourth proportional to 19,694.21, 29,537.81 and 7,846.99 is: 11,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.21 : 29,537.81 = 7,846.99 : x
  2. Step 2: Convert to fraction form
    19,694.21/29,537.81 = 7,846.99/x
  3. Step 3: Cross multiply
    19,694.21x = 29,537.81 × 7,846.99
  4. Step 4: Simplify right side
    19,694.21x = 231,782,835.51
  5. Step 5: Solve for x
    x = 231,782,835.51/19,694.21
  6. Step 6: Final answer
    x = 11,769.09

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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.