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Finding the Fourth Proportional to 9,333.26, 12,879.38 and 5,354

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Solution

The fourth proportional to 9,333.26, 12,879.38 and 5,354 is: 7,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.26 : 12,879.38 = 5,354 : x
  2. Step 2: Convert to fraction form
    9,333.26/12,879.38 = 5,354/x
  3. Step 3: Cross multiply
    9,333.26x = 12,879.38 × 5,354
  4. Step 4: Simplify right side
    9,333.26x = 68,956,173.75
  5. Step 5: Solve for x
    x = 68,956,173.75/9,333.26
  6. Step 6: Final answer
    x = 7,388.22

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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.