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Finding the Fourth Proportional to 18,294.44, 27,420.95 and 8,413.32

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Solution

The fourth proportional to 18,294.44, 27,420.95 and 8,413.32 is: 12,610.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.44 : 27,420.95 = 8,413.32 : x
  2. Step 2: Convert to fraction form
    18,294.44/27,420.95 = 8,413.32/x
  3. Step 3: Cross multiply
    18,294.44x = 27,420.95 × 8,413.32
  4. Step 4: Simplify right side
    18,294.44x = 230,701,227.05
  5. Step 5: Solve for x
    x = 230,701,227.05/18,294.44
  6. Step 6: Final answer
    x = 12,610.46

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1.5x scale

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.