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Finding the Fourth Proportional to 7,697.70, 11,550.20 and 4,413.56

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Solution

The fourth proportional to 7,697.70, 11,550.20 and 4,413.56 is: 6,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,697.70 : 11,550.20 = 4,413.56 : x
  2. Step 2: Convert to fraction form
    7,697.70/11,550.20 = 4,413.56/x
  3. Step 3: Cross multiply
    7,697.70x = 11,550.20 × 4,413.56
  4. Step 4: Simplify right side
    7,697.70x = 50,977,420.89
  5. Step 5: Solve for x
    x = 50,977,420.89/7,697.70
  6. Step 6: Final answer
    x = 6,622.42

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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.