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Finding the Fourth Proportional to 1,745.13, 2,408.09 and 959.03

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Solution

The fourth proportional to 1,745.13, 2,408.09 and 959.03 is: 1,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.13 : 2,408.09 = 959.03 : x
  2. Step 2: Convert to fraction form
    1,745.13/2,408.09 = 959.03/x
  3. Step 3: Cross multiply
    1,745.13x = 2,408.09 × 959.03
  4. Step 4: Simplify right side
    1,745.13x = 2,309,430.55
  5. Step 5: Solve for x
    x = 2,309,430.55/1,745.13
  6. Step 6: Final answer
    x = 1,323.36

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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.