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Finding the Fourth Proportional to 6,413.32, 8,849.80 and 3,580.48

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Solution

The fourth proportional to 6,413.32, 8,849.80 and 3,580.48 is: 4,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.32 : 8,849.80 = 3,580.48 : x
  2. Step 2: Convert to fraction form
    6,413.32/8,849.80 = 3,580.48/x
  3. Step 3: Cross multiply
    6,413.32x = 8,849.80 × 3,580.48
  4. Step 4: Simplify right side
    6,413.32x = 31,686,531.90
  5. Step 5: Solve for x
    x = 31,686,531.90/6,413.32
  6. Step 6: Final answer
    x = 4,940.74

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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.