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Finding the Fourth Proportional to 9,296.80, 13,945.20 and 8,843.20

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Solution

The fourth proportional to 9,296.80, 13,945.20 and 8,843.20 is: 13,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,296.80 : 13,945.20 = 8,843.20 : x
  2. Step 2: Convert to fraction form
    9,296.80/13,945.20 = 8,843.20/x
  3. Step 3: Cross multiply
    9,296.80x = 13,945.20 × 8,843.20
  4. Step 4: Simplify right side
    9,296.80x = 123,320,192.64
  5. Step 5: Solve for x
    x = 123,320,192.64/9,296.80
  6. Step 6: Final answer
    x = 13,264.80

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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.