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Finding the Fourth Proportional to 3,398.86, 5,100.47 and 1,451.01

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Solution

The fourth proportional to 3,398.86, 5,100.47 and 1,451.01 is: 2,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.86 : 5,100.47 = 1,451.01 : x
  2. Step 2: Convert to fraction form
    3,398.86/5,100.47 = 1,451.01/x
  3. Step 3: Cross multiply
    3,398.86x = 5,100.47 × 1,451.01
  4. Step 4: Simplify right side
    3,398.86x = 7,400,850.29
  5. Step 5: Solve for x
    x = 7,400,850.29/3,398.86
  6. Step 6: Final answer
    x = 2,177.45

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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.