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Finding the Fourth Proportional to 66,965.25, 92,408.49 and 36,750.09

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Solution

The fourth proportional to 66,965.25, 92,408.49 and 36,750.09 is: 50,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,965.25 : 92,408.49 = 36,750.09 : x
  2. Step 2: Convert to fraction form
    66,965.25/92,408.49 = 36,750.09/x
  3. Step 3: Cross multiply
    66,965.25x = 92,408.49 × 36,750.09
  4. Step 4: Simplify right side
    66,965.25x = 3,396,020,324.26
  5. Step 5: Solve for x
    x = 3,396,020,324.26/66,965.25
  6. Step 6: Final answer
    x = 50,713.17

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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.