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Finding the Fourth Proportional to 11,176.40, 16,745.40 and 5,903.60

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Solution

The fourth proportional to 11,176.40, 16,745.40 and 5,903.60 is: 8,845.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.40 : 16,745.40 = 5,903.60 : x
  2. Step 2: Convert to fraction form
    11,176.40/16,745.40 = 5,903.60/x
  3. Step 3: Cross multiply
    11,176.40x = 16,745.40 × 5,903.60
  4. Step 4: Simplify right side
    11,176.40x = 98,858,143.44
  5. Step 5: Solve for x
    x = 98,858,143.44/11,176.40
  6. Step 6: Final answer
    x = 8,845.26

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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.