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Finding the Fourth Proportional to 6,647.40, 9,968.27 and 2,262.87

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Solution

The fourth proportional to 6,647.40, 9,968.27 and 2,262.87 is: 3,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.40 : 9,968.27 = 2,262.87 : x
  2. Step 2: Convert to fraction form
    6,647.40/9,968.27 = 2,262.87/x
  3. Step 3: Cross multiply
    6,647.40x = 9,968.27 × 2,262.87
  4. Step 4: Simplify right side
    6,647.40x = 22,556,887.82
  5. Step 5: Solve for x
    x = 22,556,887.82/6,647.40
  6. Step 6: Final answer
    x = 3,393.34

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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.