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Finding the Fourth Proportional to 67,021.29, 92,491.01 and 36,395.70

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Solution

The fourth proportional to 67,021.29, 92,491.01 and 36,395.70 is: 50,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,021.29 : 92,491.01 = 36,395.70 : x
  2. Step 2: Convert to fraction form
    67,021.29/92,491.01 = 36,395.70/x
  3. Step 3: Cross multiply
    67,021.29x = 92,491.01 × 36,395.70
  4. Step 4: Simplify right side
    67,021.29x = 3,366,274,865.05
  5. Step 5: Solve for x
    x = 3,366,274,865.05/67,021.29
  6. Step 6: Final answer
    x = 50,226.95

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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.