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Finding the Fourth Proportional to 43,912.90, 65,903.64 and 17,634.88

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Solution

The fourth proportional to 43,912.90, 65,903.64 and 17,634.88 is: 26,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,912.90 : 65,903.64 = 17,634.88 : x
  2. Step 2: Convert to fraction form
    43,912.90/65,903.64 = 17,634.88/x
  3. Step 3: Cross multiply
    43,912.90x = 65,903.64 × 17,634.88
  4. Step 4: Simplify right side
    43,912.90x = 1,162,202,782.96
  5. Step 5: Solve for x
    x = 1,162,202,782.96/43,912.90
  6. Step 6: Final answer
    x = 26,466.09

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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.