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Finding the Fourth Proportional to 6,246.45, 8,619.95 and 3,413.82

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Solution

The fourth proportional to 6,246.45, 8,619.95 and 3,413.82 is: 4,710.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,246.45 : 8,619.95 = 3,413.82 : x
  2. Step 2: Convert to fraction form
    6,246.45/8,619.95 = 3,413.82/x
  3. Step 3: Cross multiply
    6,246.45x = 8,619.95 × 3,413.82
  4. Step 4: Simplify right side
    6,246.45x = 29,426,940.64
  5. Step 5: Solve for x
    x = 29,426,940.64/6,246.45
  6. Step 6: Final answer
    x = 4,710.99

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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.