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Finding the Fourth Proportional to 17,289.83, 25,914.21 and 7,408.23

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Solution

The fourth proportional to 17,289.83, 25,914.21 and 7,408.23 is: 11,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,289.83 : 25,914.21 = 7,408.23 : x
  2. Step 2: Convert to fraction form
    17,289.83/25,914.21 = 7,408.23/x
  3. Step 3: Cross multiply
    17,289.83x = 25,914.21 × 7,408.23
  4. Step 4: Simplify right side
    17,289.83x = 191,978,427.95
  5. Step 5: Solve for x
    x = 191,978,427.95/17,289.83
  6. Step 6: Final answer
    x = 11,103.55

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1.5x scale

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.