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Finding the Fourth Proportional to 10,644.11, 15,956.21 and 3,619.31

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Solution

The fourth proportional to 10,644.11, 15,956.21 and 3,619.31 is: 5,425.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.11 : 15,956.21 = 3,619.31 : x
  2. Step 2: Convert to fraction form
    10,644.11/15,956.21 = 3,619.31/x
  3. Step 3: Cross multiply
    10,644.11x = 15,956.21 × 3,619.31
  4. Step 4: Simplify right side
    10,644.11x = 57,750,519.35
  5. Step 5: Solve for x
    x = 57,750,519.35/10,644.11
  6. Step 6: Final answer
    x = 5,425.59

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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.