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Finding the Fourth Proportional to 64,305.75, 88,741.98 and 36,012.09

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Solution

The fourth proportional to 64,305.75, 88,741.98 and 36,012.09 is: 49,696.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,305.75 : 88,741.98 = 36,012.09 : x
  2. Step 2: Convert to fraction form
    64,305.75/88,741.98 = 36,012.09/x
  3. Step 3: Cross multiply
    64,305.75x = 88,741.98 × 36,012.09
  4. Step 4: Simplify right side
    64,305.75x = 3,195,784,170.54
  5. Step 5: Solve for x
    x = 3,195,784,170.54/64,305.75
  6. Step 6: Final answer
    x = 49,696.71

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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.