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Finding the Fourth Proportional to 6,246.55, 8,620.22 and 3,413.93

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Solution

The fourth proportional to 6,246.55, 8,620.22 and 3,413.93 is: 4,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,246.55 : 8,620.22 = 3,413.93 : x
  2. Step 2: Convert to fraction form
    6,246.55/8,620.22 = 3,413.93/x
  3. Step 3: Cross multiply
    6,246.55x = 8,620.22 × 3,413.93
  4. Step 4: Simplify right side
    6,246.55x = 29,428,810.59
  5. Step 5: Solve for x
    x = 29,428,810.59/6,246.55
  6. Step 6: Final answer
    x = 4,711.21

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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.