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Finding the Fourth Proportional to 21,840.44, 32,763.69 and 7,044.57

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Solution

The fourth proportional to 21,840.44, 32,763.69 and 7,044.57 is: 10,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.44 : 32,763.69 = 7,044.57 : x
  2. Step 2: Convert to fraction form
    21,840.44/32,763.69 = 7,044.57/x
  3. Step 3: Cross multiply
    21,840.44x = 32,763.69 × 7,044.57
  4. Step 4: Simplify right side
    21,840.44x = 230,806,107.66
  5. Step 5: Solve for x
    x = 230,806,107.66/21,840.44
  6. Step 6: Final answer
    x = 10,567.83

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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.