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Finding the Fourth Proportional to 6,576.87, 9,077.90 and 3,926.07

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Solution

The fourth proportional to 6,576.87, 9,077.90 and 3,926.07 is: 5,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,576.87 : 9,077.90 = 3,926.07 : x
  2. Step 2: Convert to fraction form
    6,576.87/9,077.90 = 3,926.07/x
  3. Step 3: Cross multiply
    6,576.87x = 9,077.90 × 3,926.07
  4. Step 4: Simplify right side
    6,576.87x = 35,640,451.22
  5. Step 5: Solve for x
    x = 35,640,451.22/6,576.87
  6. Step 6: Final answer
    x = 5,419.06

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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.