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Finding the Fourth Proportional to 34,431.83, 51,629.83 and 12,241.99

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Solution

The fourth proportional to 34,431.83, 51,629.83 and 12,241.99 is: 18,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,431.83 : 51,629.83 = 12,241.99 : x
  2. Step 2: Convert to fraction form
    34,431.83/51,629.83 = 12,241.99/x
  3. Step 3: Cross multiply
    34,431.83x = 51,629.83 × 12,241.99
  4. Step 4: Simplify right side
    34,431.83x = 632,051,640.51
  5. Step 5: Solve for x
    x = 632,051,640.51/34,431.83
  6. Step 6: Final answer
    x = 18,356.61

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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.