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Finding the Fourth Proportional to 6,655.92, 9,185.07 and 3,861.42

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Solution

The fourth proportional to 6,655.92, 9,185.07 and 3,861.42 is: 5,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.92 : 9,185.07 = 3,861.42 : x
  2. Step 2: Convert to fraction form
    6,655.92/9,185.07 = 3,861.42/x
  3. Step 3: Cross multiply
    6,655.92x = 9,185.07 × 3,861.42
  4. Step 4: Simplify right side
    6,655.92x = 35,467,413.00
  5. Step 5: Solve for x
    x = 35,467,413.00/6,655.92
  6. Step 6: Final answer
    x = 5,328.70

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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.