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Finding the Fourth Proportional to 18,480.34, 25,500.08 and 10,413.65

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Solution

The fourth proportional to 18,480.34, 25,500.08 and 10,413.65 is: 14,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.34 : 25,500.08 = 10,413.65 : x
  2. Step 2: Convert to fraction form
    18,480.34/25,500.08 = 10,413.65/x
  3. Step 3: Cross multiply
    18,480.34x = 25,500.08 × 10,413.65
  4. Step 4: Simplify right side
    18,480.34x = 265,548,908.09
  5. Step 5: Solve for x
    x = 265,548,908.09/18,480.34
  6. Step 6: Final answer
    x = 14,369.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.