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Finding the Fourth Proportional to 18,797.27, 25,959.69 and 13,147.52

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Solution

The fourth proportional to 18,797.27, 25,959.69 and 13,147.52 is: 18,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.27 : 25,959.69 = 13,147.52 : x
  2. Step 2: Convert to fraction form
    18,797.27/25,959.69 = 13,147.52/x
  3. Step 3: Cross multiply
    18,797.27x = 25,959.69 × 13,147.52
  4. Step 4: Simplify right side
    18,797.27x = 341,305,413.67
  5. Step 5: Solve for x
    x = 341,305,413.67/18,797.27
  6. Step 6: Final answer
    x = 18,157.18

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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.