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Finding the Fourth Proportional to 41,393.94, 56,979.39 and 36,079.50

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Solution

The fourth proportional to 41,393.94, 56,979.39 and 36,079.50 is: 49,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,393.94 : 56,979.39 = 36,079.50 : x
  2. Step 2: Convert to fraction form
    41,393.94/56,979.39 = 36,079.50/x
  3. Step 3: Cross multiply
    41,393.94x = 56,979.39 × 36,079.50
  4. Step 4: Simplify right side
    41,393.94x = 2,055,787,901.51
  5. Step 5: Solve for x
    x = 2,055,787,901.51/41,393.94
  6. Step 6: Final answer
    x = 49,663.98

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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.