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Finding the Fourth Proportional to 28,798.92, 43,183.62 and 13,203

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Solution

The fourth proportional to 28,798.92, 43,183.62 and 13,203 is: 19,797.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798.92 : 43,183.62 = 13,203 : x
  2. Step 2: Convert to fraction form
    28,798.92/43,183.62 = 13,203/x
  3. Step 3: Cross multiply
    28,798.92x = 43,183.62 × 13,203
  4. Step 4: Simplify right side
    28,798.92x = 570,153,334.86
  5. Step 5: Solve for x
    x = 570,153,334.86/28,798.92
  6. Step 6: Final answer
    x = 19,797.73

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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.