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Finding the Fourth Proportional to 11,170.60, 15,413.94 and 6,922.60

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Solution

The fourth proportional to 11,170.60, 15,413.94 and 6,922.60 is: 9,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.60 : 15,413.94 = 6,922.60 : x
  2. Step 2: Convert to fraction form
    11,170.60/15,413.94 = 6,922.60/x
  3. Step 3: Cross multiply
    11,170.60x = 15,413.94 × 6,922.60
  4. Step 4: Simplify right side
    11,170.60x = 106,704,541.04
  5. Step 5: Solve for x
    x = 106,704,541.04/11,170.60
  6. Step 6: Final answer
    x = 9,552.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.