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Finding the Fourth Proportional to 5,371.42, 8,059.44 and 2,908

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Solution

The fourth proportional to 5,371.42, 8,059.44 and 2,908 is: 4,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.42 : 8,059.44 = 2,908 : x
  2. Step 2: Convert to fraction form
    5,371.42/8,059.44 = 2,908/x
  3. Step 3: Cross multiply
    5,371.42x = 8,059.44 × 2,908
  4. Step 4: Simplify right side
    5,371.42x = 23,436,851.52
  5. Step 5: Solve for x
    x = 23,436,851.52/5,371.42
  6. Step 6: Final answer
    x = 4,363.25

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Why These Related Problems?

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