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Finding the Fourth Proportional to 8,223.40, 11,342.82 and 5,075.56

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Solution

The fourth proportional to 8,223.40, 11,342.82 and 5,075.56 is: 7,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.40 : 11,342.82 = 5,075.56 : x
  2. Step 2: Convert to fraction form
    8,223.40/11,342.82 = 5,075.56/x
  3. Step 3: Cross multiply
    8,223.40x = 11,342.82 × 5,075.56
  4. Step 4: Simplify right side
    8,223.40x = 57,571,163.48
  5. Step 5: Solve for x
    x = 57,571,163.48/8,223.40
  6. Step 6: Final answer
    x = 7,000.90

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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.