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Finding the Fourth Proportional to 6,907.50, 10,361.28 and 2,290.50

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Solution

The fourth proportional to 6,907.50, 10,361.28 and 2,290.50 is: 3,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,907.50 : 10,361.28 = 2,290.50 : x
  2. Step 2: Convert to fraction form
    6,907.50/10,361.28 = 2,290.50/x
  3. Step 3: Cross multiply
    6,907.50x = 10,361.28 × 2,290.50
  4. Step 4: Simplify right side
    6,907.50x = 23,732,511.84
  5. Step 5: Solve for x
    x = 23,732,511.84/6,907.50
  6. Step 6: Final answer
    x = 3,435.76

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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.