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Finding the Fourth Proportional to 3,607.38, 4,978.41 and 2,035.71

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Solution

The fourth proportional to 3,607.38, 4,978.41 and 2,035.71 is: 2,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.38 : 4,978.41 = 2,035.71 : x
  2. Step 2: Convert to fraction form
    3,607.38/4,978.41 = 2,035.71/x
  3. Step 3: Cross multiply
    3,607.38x = 4,978.41 × 2,035.71
  4. Step 4: Simplify right side
    3,607.38x = 10,134,599.02
  5. Step 5: Solve for x
    x = 10,134,599.02/3,607.38
  6. Step 6: Final answer
    x = 2,809.41

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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.