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Finding the Fourth Proportional to 13,076.62, 19,614.21 and 7,669.99

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Solution

The fourth proportional to 13,076.62, 19,614.21 and 7,669.99 is: 11,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.62 : 19,614.21 = 7,669.99 : x
  2. Step 2: Convert to fraction form
    13,076.62/19,614.21 = 7,669.99/x
  3. Step 3: Cross multiply
    13,076.62x = 19,614.21 × 7,669.99
  4. Step 4: Simplify right side
    13,076.62x = 150,440,745.52
  5. Step 5: Solve for x
    x = 150,440,745.52/13,076.62
  6. Step 6: Final answer
    x = 11,504.56

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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.