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Finding the Fourth Proportional to 13,796.80, 20,658.28 and 12,033.52

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Solution

The fourth proportional to 13,796.80, 20,658.28 and 12,033.52 is: 18,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.80 : 20,658.28 = 12,033.52 : x
  2. Step 2: Convert to fraction form
    13,796.80/20,658.28 = 12,033.52/x
  3. Step 3: Cross multiply
    13,796.80x = 20,658.28 × 12,033.52
  4. Step 4: Simplify right side
    13,796.80x = 248,591,825.55
  5. Step 5: Solve for x
    x = 248,591,825.55/13,796.80
  6. Step 6: Final answer
    x = 18,018.08

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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.