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Finding the Fourth Proportional to 5,607.88, 8,398.86 and 5,413.48

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Solution

The fourth proportional to 5,607.88, 8,398.86 and 5,413.48 is: 8,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.88 : 8,398.86 = 5,413.48 : x
  2. Step 2: Convert to fraction form
    5,607.88/8,398.86 = 5,413.48/x
  3. Step 3: Cross multiply
    5,607.88x = 8,398.86 × 5,413.48
  4. Step 4: Simplify right side
    5,607.88x = 45,467,060.63
  5. Step 5: Solve for x
    x = 45,467,060.63/5,607.88
  6. Step 6: Final answer
    x = 8,107.71

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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.