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Finding the Fourth Proportional to 5,369.87, 7,413.86 and 4,809.35

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Solution

The fourth proportional to 5,369.87, 7,413.86 and 4,809.35 is: 6,639.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.87 : 7,413.86 = 4,809.35 : x
  2. Step 2: Convert to fraction form
    5,369.87/7,413.86 = 4,809.35/x
  3. Step 3: Cross multiply
    5,369.87x = 7,413.86 × 4,809.35
  4. Step 4: Simplify right side
    5,369.87x = 35,655,847.59
  5. Step 5: Solve for x
    x = 35,655,847.59/5,369.87
  6. Step 6: Final answer
    x = 6,639.98

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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.