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Finding the Fourth Proportional to 64,716.84, 89,291.79 and 37,865.97

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Solution

The fourth proportional to 64,716.84, 89,291.79 and 37,865.97 is: 52,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,716.84 : 89,291.79 = 37,865.97 : x
  2. Step 2: Convert to fraction form
    64,716.84/89,291.79 = 37,865.97/x
  3. Step 3: Cross multiply
    64,716.84x = 89,291.79 × 37,865.97
  4. Step 4: Simplify right side
    64,716.84x = 3,381,120,241.39
  5. Step 5: Solve for x
    x = 3,381,120,241.39/64,716.84
  6. Step 6: Final answer
    x = 52,244.83

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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.