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Finding the Fourth Proportional to 26,236.50, 39,361.41 and 7,768.50

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Solution

The fourth proportional to 26,236.50, 39,361.41 and 7,768.50 is: 11,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,236.50 : 39,361.41 = 7,768.50 : x
  2. Step 2: Convert to fraction form
    26,236.50/39,361.41 = 7,768.50/x
  3. Step 3: Cross multiply
    26,236.50x = 39,361.41 × 7,768.50
  4. Step 4: Simplify right side
    26,236.50x = 305,779,113.59
  5. Step 5: Solve for x
    x = 305,779,113.59/26,236.50
  6. Step 6: Final answer
    x = 11,654.72

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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.