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Finding the Fourth Proportional to 8,825.58, 13,239.99 and 5,355.54

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Solution

The fourth proportional to 8,825.58, 13,239.99 and 5,355.54 is: 8,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.58 : 13,239.99 = 5,355.54 : x
  2. Step 2: Convert to fraction form
    8,825.58/13,239.99 = 5,355.54/x
  3. Step 3: Cross multiply
    8,825.58x = 13,239.99 × 5,355.54
  4. Step 4: Simplify right side
    8,825.58x = 70,907,296.04
  5. Step 5: Solve for x
    x = 70,907,296.04/8,825.58
  6. Step 6: Final answer
    x = 8,034.29

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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.