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Finding the Fourth Proportional to 3,842.54, 5,764.13 and 1,069.23

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Solution

The fourth proportional to 3,842.54, 5,764.13 and 1,069.23 is: 1,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.54 : 5,764.13 = 1,069.23 : x
  2. Step 2: Convert to fraction form
    3,842.54/5,764.13 = 1,069.23/x
  3. Step 3: Cross multiply
    3,842.54x = 5,764.13 × 1,069.23
  4. Step 4: Simplify right side
    3,842.54x = 6,163,201.00
  5. Step 5: Solve for x
    x = 6,163,201.00/3,842.54
  6. Step 6: Final answer
    x = 1,603.94

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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.