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Finding the Fourth Proportional to 4,907.72, 6,772.60 and 2,669.56

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Solution

The fourth proportional to 4,907.72, 6,772.60 and 2,669.56 is: 3,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.72 : 6,772.60 = 2,669.56 : x
  2. Step 2: Convert to fraction form
    4,907.72/6,772.60 = 2,669.56/x
  3. Step 3: Cross multiply
    4,907.72x = 6,772.60 × 2,669.56
  4. Step 4: Simplify right side
    4,907.72x = 18,079,862.06
  5. Step 5: Solve for x
    x = 18,079,862.06/4,907.72
  6. Step 6: Final answer
    x = 3,683.96

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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.