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Finding the Fourth Proportional to 36,029.60, 53,979.60 and 30,845.60

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Solution

The fourth proportional to 36,029.60, 53,979.60 and 30,845.60 is: 46,212.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,029.60 : 53,979.60 = 30,845.60 : x
  2. Step 2: Convert to fraction form
    36,029.60/53,979.60 = 30,845.60/x
  3. Step 3: Cross multiply
    36,029.60x = 53,979.60 × 30,845.60
  4. Step 4: Simplify right side
    36,029.60x = 1,665,033,149.76
  5. Step 5: Solve for x
    x = 1,665,033,149.76/36,029.60
  6. Step 6: Final answer
    x = 46,212.92

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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.