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Finding the Fourth Proportional to 64,891.78, 89,550.61 and 36,597.47

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Solution

The fourth proportional to 64,891.78, 89,550.61 and 36,597.47 is: 50,504.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.78 : 89,550.61 = 36,597.47 : x
  2. Step 2: Convert to fraction form
    64,891.78/89,550.61 = 36,597.47/x
  3. Step 3: Cross multiply
    64,891.78x = 89,550.61 × 36,597.47
  4. Step 4: Simplify right side
    64,891.78x = 3,277,325,933.29
  5. Step 5: Solve for x
    x = 3,277,325,933.29/64,891.78
  6. Step 6: Final answer
    x = 50,504.48

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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.