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Finding the Fourth Proportional to 66,064.77, 91,169.44 and 37,383.82

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Solution

The fourth proportional to 66,064.77, 91,169.44 and 37,383.82 is: 51,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,064.77 : 91,169.44 = 37,383.82 : x
  2. Step 2: Convert to fraction form
    66,064.77/91,169.44 = 37,383.82/x
  3. Step 3: Cross multiply
    66,064.77x = 91,169.44 × 37,383.82
  4. Step 4: Simplify right side
    66,064.77x = 3,408,261,613.08
  5. Step 5: Solve for x
    x = 3,408,261,613.08/66,064.77
  6. Step 6: Final answer
    x = 51,589.70

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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.