Home / 41,996.70-62,980.38-12,406.68

Finding the Fourth Proportional to 41,996.70, 62,980.38 and 12,406.68

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Solution

The fourth proportional to 41,996.70, 62,980.38 and 12,406.68 is: 18,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,996.70 : 62,980.38 = 12,406.68 : x
  2. Step 2: Convert to fraction form
    41,996.70/62,980.38 = 12,406.68/x
  3. Step 3: Cross multiply
    41,996.70x = 62,980.38 × 12,406.68
  4. Step 4: Simplify right side
    41,996.70x = 781,377,420.94
  5. Step 5: Solve for x
    x = 781,377,420.94/41,996.70
  6. Step 6: Final answer
    x = 18,605.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.