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Finding the Fourth Proportional to 3,400.73, 5,101.10 and 935.81

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Solution

The fourth proportional to 3,400.73, 5,101.10 and 935.81 is: 1,403.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.73 : 5,101.10 = 935.81 : x
  2. Step 2: Convert to fraction form
    3,400.73/5,101.10 = 935.81/x
  3. Step 3: Cross multiply
    3,400.73x = 5,101.10 × 935.81
  4. Step 4: Simplify right side
    3,400.73x = 4,773,660.39
  5. Step 5: Solve for x
    x = 4,773,660.39/3,400.73
  6. Step 6: Final answer
    x = 1,403.72

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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.