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Finding the Fourth Proportional to 64,600.48, 89,137.82 and 35,919.32

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Solution

The fourth proportional to 64,600.48, 89,137.82 and 35,919.32 is: 49,562.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,600.48 : 89,137.82 = 35,919.32 : x
  2. Step 2: Convert to fraction form
    64,600.48/89,137.82 = 35,919.32/x
  3. Step 3: Cross multiply
    64,600.48x = 89,137.82 × 35,919.32
  4. Step 4: Simplify right side
    64,600.48x = 3,201,770,193.33
  5. Step 5: Solve for x
    x = 3,201,770,193.33/64,600.48
  6. Step 6: Final answer
    x = 49,562.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.