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Finding the Fourth Proportional to 6,448.65, 8,899.23 and 3,616.65

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Solution

The fourth proportional to 6,448.65, 8,899.23 and 3,616.65 is: 4,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.65 : 8,899.23 = 3,616.65 : x
  2. Step 2: Convert to fraction form
    6,448.65/8,899.23 = 3,616.65/x
  3. Step 3: Cross multiply
    6,448.65x = 8,899.23 × 3,616.65
  4. Step 4: Simplify right side
    6,448.65x = 32,185,413.74
  5. Step 5: Solve for x
    x = 32,185,413.74/6,448.65
  6. Step 6: Final answer
    x = 4,991.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.