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Finding the Fourth Proportional to 66,950.39, 92,389.90 and 37,481.76

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Solution

The fourth proportional to 66,950.39, 92,389.90 and 37,481.76 is: 51,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,950.39 : 92,389.90 = 37,481.76 : x
  2. Step 2: Convert to fraction form
    66,950.39/92,389.90 = 37,481.76/x
  3. Step 3: Cross multiply
    66,950.39x = 92,389.90 × 37,481.76
  4. Step 4: Simplify right side
    66,950.39x = 3,462,936,101.79
  5. Step 5: Solve for x
    x = 3,462,936,101.79/66,950.39
  6. Step 6: Final answer
    x = 51,723.91

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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.