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Finding the Fourth Proportional to 21,603.94, 32,408.64 and 6,021.56

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Solution

The fourth proportional to 21,603.94, 32,408.64 and 6,021.56 is: 9,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603.94 : 32,408.64 = 6,021.56 : x
  2. Step 2: Convert to fraction form
    21,603.94/32,408.64 = 6,021.56/x
  3. Step 3: Cross multiply
    21,603.94x = 32,408.64 × 6,021.56
  4. Step 4: Simplify right side
    21,603.94x = 195,150,651.30
  5. Step 5: Solve for x
    x = 195,150,651.30/21,603.94
  6. Step 6: Final answer
    x = 9,033.11

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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.