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Finding the Fourth Proportional to 18,264.42, 27,396.54 and 4,413.42

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Solution

The fourth proportional to 18,264.42, 27,396.54 and 4,413.42 is: 6,620.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.42 : 27,396.54 = 4,413.42 : x
  2. Step 2: Convert to fraction form
    18,264.42/27,396.54 = 4,413.42/x
  3. Step 3: Cross multiply
    18,264.42x = 27,396.54 × 4,413.42
  4. Step 4: Simplify right side
    18,264.42x = 120,912,437.57
  5. Step 5: Solve for x
    x = 120,912,437.57/18,264.42
  6. Step 6: Final answer
    x = 6,620.11

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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.