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Finding the Fourth Proportional to 5,817.78, 8,028.72 and 3,300

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Solution

The fourth proportional to 5,817.78, 8,028.72 and 3,300 is: 4,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.78 : 8,028.72 = 3,300 : x
  2. Step 2: Convert to fraction form
    5,817.78/8,028.72 = 3,300/x
  3. Step 3: Cross multiply
    5,817.78x = 8,028.72 × 3,300
  4. Step 4: Simplify right side
    5,817.78x = 26,494,776
  5. Step 5: Solve for x
    x = 26,494,776/5,817.78
  6. Step 6: Final answer
    x = 4,554.10

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Why These Related Problems?

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