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Finding the Fourth Proportional to 3,576.63, 5,365.25 and 979.57

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Solution

The fourth proportional to 3,576.63, 5,365.25 and 979.57 is: 1,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.63 : 5,365.25 = 979.57 : x
  2. Step 2: Convert to fraction form
    3,576.63/5,365.25 = 979.57/x
  3. Step 3: Cross multiply
    3,576.63x = 5,365.25 × 979.57
  4. Step 4: Simplify right side
    3,576.63x = 5,255,637.94
  5. Step 5: Solve for x
    x = 5,255,637.94/3,576.63
  6. Step 6: Final answer
    x = 1,469.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.