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Finding the Fourth Proportional to 3,398.54, 5,096.74 and 1,424.16

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Solution

The fourth proportional to 3,398.54, 5,096.74 and 1,424.16 is: 2,135.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.54 : 5,096.74 = 1,424.16 : x
  2. Step 2: Convert to fraction form
    3,398.54/5,096.74 = 1,424.16/x
  3. Step 3: Cross multiply
    3,398.54x = 5,096.74 × 1,424.16
  4. Step 4: Simplify right side
    3,398.54x = 7,258,573.24
  5. Step 5: Solve for x
    x = 7,258,573.24/3,398.54
  6. Step 6: Final answer
    x = 2,135.79

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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.