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Finding the Fourth Proportional to 82,791.24, 124,188 and 23,626.90

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Solution

The fourth proportional to 82,791.24, 124,188 and 23,626.90 is: 35,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,791.24 : 124,188 = 23,626.90 : x
  2. Step 2: Convert to fraction form
    82,791.24/124,188 = 23,626.90/x
  3. Step 3: Cross multiply
    82,791.24x = 124,188 × 23,626.90
  4. Step 4: Simplify right side
    82,791.24x = 2,934,177,457.20
  5. Step 5: Solve for x
    x = 2,934,177,457.20/82,791.24
  6. Step 6: Final answer
    x = 35,440.68

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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.