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Finding the Fourth Proportional to 5,578.79, 7,698.83 and 3,061.14

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Solution

The fourth proportional to 5,578.79, 7,698.83 and 3,061.14 is: 4,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.79 : 7,698.83 = 3,061.14 : x
  2. Step 2: Convert to fraction form
    5,578.79/7,698.83 = 3,061.14/x
  3. Step 3: Cross multiply
    5,578.79x = 7,698.83 × 3,061.14
  4. Step 4: Simplify right side
    5,578.79x = 23,567,181.16
  5. Step 5: Solve for x
    x = 23,567,181.16/5,578.79
  6. Step 6: Final answer
    x = 4,224.43

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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.