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Finding the Fourth Proportional to 7,388.99, 11,074.98 and 3,228.02

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Solution

The fourth proportional to 7,388.99, 11,074.98 and 3,228.02 is: 4,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.99 : 11,074.98 = 3,228.02 : x
  2. Step 2: Convert to fraction form
    7,388.99/11,074.98 = 3,228.02/x
  3. Step 3: Cross multiply
    7,388.99x = 11,074.98 × 3,228.02
  4. Step 4: Simplify right side
    7,388.99x = 35,750,237.04
  5. Step 5: Solve for x
    x = 35,750,237.04/7,388.99
  6. Step 6: Final answer
    x = 4,838.31

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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.