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Finding the Fourth Proportional to 41,478.72, 57,239.89 and 22,615.84

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Solution

The fourth proportional to 41,478.72, 57,239.89 and 22,615.84 is: 31,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,478.72 : 57,239.89 = 22,615.84 : x
  2. Step 2: Convert to fraction form
    41,478.72/57,239.89 = 22,615.84/x
  3. Step 3: Cross multiply
    41,478.72x = 57,239.89 × 22,615.84
  4. Step 4: Simplify right side
    41,478.72x = 1,294,528,193.86
  5. Step 5: Solve for x
    x = 1,294,528,193.86/41,478.72
  6. Step 6: Final answer
    x = 31,209.45

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