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Finding the Fourth Proportional to 13,197.60, 19,796.04 and 3,963.60

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Solution

The fourth proportional to 13,197.60, 19,796.04 and 3,963.60 is: 5,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.60 : 19,796.04 = 3,963.60 : x
  2. Step 2: Convert to fraction form
    13,197.60/19,796.04 = 3,963.60/x
  3. Step 3: Cross multiply
    13,197.60x = 19,796.04 × 3,963.60
  4. Step 4: Simplify right side
    13,197.60x = 78,463,584.14
  5. Step 5: Solve for x
    x = 78,463,584.14/13,197.60
  6. Step 6: Final answer
    x = 5,945.29

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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.