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Finding the Fourth Proportional to 7,023.51, 9,692.69 and 3,879.99

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Solution

The fourth proportional to 7,023.51, 9,692.69 and 3,879.99 is: 5,354.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.51 : 9,692.69 = 3,879.99 : x
  2. Step 2: Convert to fraction form
    7,023.51/9,692.69 = 3,879.99/x
  3. Step 3: Cross multiply
    7,023.51x = 9,692.69 × 3,879.99
  4. Step 4: Simplify right side
    7,023.51x = 37,607,520.87
  5. Step 5: Solve for x
    x = 37,607,520.87/7,023.51
  6. Step 6: Final answer
    x = 5,354.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.