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Finding the Fourth Proportional to 18,480.04, 25,469.48 and 13,993.04

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Solution

The fourth proportional to 18,480.04, 25,469.48 and 13,993.04 is: 19,285.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.04 : 25,469.48 = 13,993.04 : x
  2. Step 2: Convert to fraction form
    18,480.04/25,469.48 = 13,993.04/x
  3. Step 3: Cross multiply
    18,480.04x = 25,469.48 × 13,993.04
  4. Step 4: Simplify right side
    18,480.04x = 356,395,452.42
  5. Step 5: Solve for x
    x = 356,395,452.42/18,480.04
  6. Step 6: Final answer
    x = 19,285.43

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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.