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Finding the Fourth Proportional to 7,550.72, 11,326 and 3,168

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Solution

The fourth proportional to 7,550.72, 11,326 and 3,168 is: 4,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.72 : 11,326 = 3,168 : x
  2. Step 2: Convert to fraction form
    7,550.72/11,326 = 3,168/x
  3. Step 3: Cross multiply
    7,550.72x = 11,326 × 3,168
  4. Step 4: Simplify right side
    7,550.72x = 35,880,768
  5. Step 5: Solve for x
    x = 35,880,768/7,550.72
  6. Step 6: Final answer
    x = 4,751.97

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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.