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Finding the Fourth Proportional to 16,745.96, 25,131.90 and 8,961.32

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Solution

The fourth proportional to 16,745.96, 25,131.90 and 8,961.32 is: 13,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,745.96 : 25,131.90 = 8,961.32 : x
  2. Step 2: Convert to fraction form
    16,745.96/25,131.90 = 8,961.32/x
  3. Step 3: Cross multiply
    16,745.96x = 25,131.90 × 8,961.32
  4. Step 4: Simplify right side
    16,745.96x = 225,214,998.11
  5. Step 5: Solve for x
    x = 225,214,998.11/16,745.96
  6. Step 6: Final answer
    x = 13,448.92

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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.