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Finding the Fourth Proportional to 11,745.13, 16,209.03 and 7,759.26

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Solution

The fourth proportional to 11,745.13, 16,209.03 and 7,759.26 is: 10,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.13 : 16,209.03 = 7,759.26 : x
  2. Step 2: Convert to fraction form
    11,745.13/16,209.03 = 7,759.26/x
  3. Step 3: Cross multiply
    11,745.13x = 16,209.03 × 7,759.26
  4. Step 4: Simplify right side
    11,745.13x = 125,770,078.12
  5. Step 5: Solve for x
    x = 125,770,078.12/11,745.13
  6. Step 6: Final answer
    x = 10,708.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.