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Finding the Fourth Proportional to 39,608.34, 54,655.26 and 22,611

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Solution

The fourth proportional to 39,608.34, 54,655.26 and 22,611 is: 31,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.34 : 54,655.26 = 22,611 : x
  2. Step 2: Convert to fraction form
    39,608.34/54,655.26 = 22,611/x
  3. Step 3: Cross multiply
    39,608.34x = 54,655.26 × 22,611
  4. Step 4: Simplify right side
    39,608.34x = 1,235,810,083.86
  5. Step 5: Solve for x
    x = 1,235,810,083.86/39,608.34
  6. Step 6: Final answer
    x = 31,200.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.