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Finding the Fourth Proportional to 9,968.90, 14,910.15 and 8,413.70

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Solution

The fourth proportional to 9,968.90, 14,910.15 and 8,413.70 is: 12,584.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968.90 : 14,910.15 = 8,413.70 : x
  2. Step 2: Convert to fraction form
    9,968.90/14,910.15 = 8,413.70/x
  3. Step 3: Cross multiply
    9,968.90x = 14,910.15 × 8,413.70
  4. Step 4: Simplify right side
    9,968.90x = 125,449,529.06
  5. Step 5: Solve for x
    x = 125,449,529.06/9,968.90
  6. Step 6: Final answer
    x = 12,584.09

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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.