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Finding the Fourth Proportional to 7,448.99, 11,174.94 and 2,520.05

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Solution

The fourth proportional to 7,448.99, 11,174.94 and 2,520.05 is: 3,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.99 : 11,174.94 = 2,520.05 : x
  2. Step 2: Convert to fraction form
    7,448.99/11,174.94 = 2,520.05/x
  3. Step 3: Cross multiply
    7,448.99x = 11,174.94 × 2,520.05
  4. Step 4: Simplify right side
    7,448.99x = 28,161,351.67
  5. Step 5: Solve for x
    x = 28,161,351.67/7,448.99
  6. Step 6: Final answer
    x = 3,780.56

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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.