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Finding the Fourth Proportional to 7,751.99, 11,621.51 and 3,594.97

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Solution

The fourth proportional to 7,751.99, 11,621.51 and 3,594.97 is: 5,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.99 : 11,621.51 = 3,594.97 : x
  2. Step 2: Convert to fraction form
    7,751.99/11,621.51 = 3,594.97/x
  3. Step 3: Cross multiply
    7,751.99x = 11,621.51 × 3,594.97
  4. Step 4: Simplify right side
    7,751.99x = 41,778,903.72
  5. Step 5: Solve for x
    x = 41,778,903.72/7,751.99
  6. Step 6: Final answer
    x = 5,389.44

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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.