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Finding the Fourth Proportional to 9,190.80, 13,786.20 and 9,093.60

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Solution

The fourth proportional to 9,190.80, 13,786.20 and 9,093.60 is: 13,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.80 : 13,786.20 = 9,093.60 : x
  2. Step 2: Convert to fraction form
    9,190.80/13,786.20 = 9,093.60/x
  3. Step 3: Cross multiply
    9,190.80x = 13,786.20 × 9,093.60
  4. Step 4: Simplify right side
    9,190.80x = 125,366,188.32
  5. Step 5: Solve for x
    x = 125,366,188.32/9,190.80
  6. Step 6: Final answer
    x = 13,640.40

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Similar ratio
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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.