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Finding the Fourth Proportional to 5,626, 8,442.78 and 3,376.36

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Solution

The fourth proportional to 5,626, 8,442.78 and 3,376.36 is: 5,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626 : 8,442.78 = 3,376.36 : x
  2. Step 2: Convert to fraction form
    5,626/8,442.78 = 3,376.36/x
  3. Step 3: Cross multiply
    5,626x = 8,442.78 × 3,376.36
  4. Step 4: Simplify right side
    5,626x = 28,505,864.68
  5. Step 5: Solve for x
    x = 28,505,864.68/5,626
  6. Step 6: Final answer
    x = 5,066.81

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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.