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Finding the Fourth Proportional to 11,245.44, 16,865.22 and 3,345.83

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Solution

The fourth proportional to 11,245.44, 16,865.22 and 3,345.83 is: 5,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.44 : 16,865.22 = 3,345.83 : x
  2. Step 2: Convert to fraction form
    11,245.44/16,865.22 = 3,345.83/x
  3. Step 3: Cross multiply
    11,245.44x = 16,865.22 × 3,345.83
  4. Step 4: Simplify right side
    11,245.44x = 56,428,159.03
  5. Step 5: Solve for x
    x = 56,428,159.03/11,245.44
  6. Step 6: Final answer
    x = 5,017.87

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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.