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Finding the Fourth Proportional to 18,796.56, 25,939.92 and 10,413.06

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Solution

The fourth proportional to 18,796.56, 25,939.92 and 10,413.06 is: 14,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.56 : 25,939.92 = 10,413.06 : x
  2. Step 2: Convert to fraction form
    18,796.56/25,939.92 = 10,413.06/x
  3. Step 3: Cross multiply
    18,796.56x = 25,939.92 × 10,413.06
  4. Step 4: Simplify right side
    18,796.56x = 270,113,943.36
  5. Step 5: Solve for x
    x = 270,113,943.36/18,796.56
  6. Step 6: Final answer
    x = 14,370.39

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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.