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Finding the Fourth Proportional to 11,228.48, 16,845.60 and 4,652.48

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Solution

The fourth proportional to 11,228.48, 16,845.60 and 4,652.48 is: 6,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.48 : 16,845.60 = 4,652.48 : x
  2. Step 2: Convert to fraction form
    11,228.48/16,845.60 = 4,652.48/x
  3. Step 3: Cross multiply
    11,228.48x = 16,845.60 × 4,652.48
  4. Step 4: Simplify right side
    11,228.48x = 78,373,817.09
  5. Step 5: Solve for x
    x = 78,373,817.09/11,228.48
  6. Step 6: Final answer
    x = 6,979.91

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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.