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Finding the Fourth Proportional to 10,809.01, 16,215.99 and 3,413.44

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Solution

The fourth proportional to 10,809.01, 16,215.99 and 3,413.44 is: 5,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.01 : 16,215.99 = 3,413.44 : x
  2. Step 2: Convert to fraction form
    10,809.01/16,215.99 = 3,413.44/x
  3. Step 3: Cross multiply
    10,809.01x = 16,215.99 × 3,413.44
  4. Step 4: Simplify right side
    10,809.01x = 55,352,308.91
  5. Step 5: Solve for x
    x = 55,352,308.91/10,809.01
  6. Step 6: Final answer
    x = 5,120.94

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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.