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Finding the Fourth Proportional to 49,651.93, 74,435.94 and 21,550.74

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Solution

The fourth proportional to 49,651.93, 74,435.94 and 21,550.74 is: 32,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,651.93 : 74,435.94 = 21,550.74 : x
  2. Step 2: Convert to fraction form
    49,651.93/74,435.94 = 21,550.74/x
  3. Step 3: Cross multiply
    49,651.93x = 74,435.94 × 21,550.74
  4. Step 4: Simplify right side
    49,651.93x = 1,604,149,589.60
  5. Step 5: Solve for x
    x = 1,604,149,589.60/49,651.93
  6. Step 6: Final answer
    x = 32,307.90

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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.