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Finding the Fourth Proportional to 67,881.11, 93,674.49 and 37,665.77

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Solution

The fourth proportional to 67,881.11, 93,674.49 and 37,665.77 is: 51,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,881.11 : 93,674.49 = 37,665.77 : x
  2. Step 2: Convert to fraction form
    67,881.11/93,674.49 = 37,665.77/x
  3. Step 3: Cross multiply
    67,881.11x = 93,674.49 × 37,665.77
  4. Step 4: Simplify right side
    67,881.11x = 3,528,321,326.83
  5. Step 5: Solve for x
    x = 3,528,321,326.83/67,881.11
  6. Step 6: Final answer
    x = 51,977.96

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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.