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Finding the Fourth Proportional to 7,327.88, 10,985.24 and 2,644.64

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Solution

The fourth proportional to 7,327.88, 10,985.24 and 2,644.64 is: 3,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.88 : 10,985.24 = 2,644.64 : x
  2. Step 2: Convert to fraction form
    7,327.88/10,985.24 = 2,644.64/x
  3. Step 3: Cross multiply
    7,327.88x = 10,985.24 × 2,644.64
  4. Step 4: Simplify right side
    7,327.88x = 29,052,005.11
  5. Step 5: Solve for x
    x = 29,052,005.11/7,327.88
  6. Step 6: Final answer
    x = 3,964.59

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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.