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Finding the Fourth Proportional to 10,375.80, 15,561.30 and 3,448.44

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Solution

The fourth proportional to 10,375.80, 15,561.30 and 3,448.44 is: 5,171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.80 : 15,561.30 = 3,448.44 : x
  2. Step 2: Convert to fraction form
    10,375.80/15,561.30 = 3,448.44/x
  3. Step 3: Cross multiply
    10,375.80x = 15,561.30 × 3,448.44
  4. Step 4: Simplify right side
    10,375.80x = 53,662,209.37
  5. Step 5: Solve for x
    x = 53,662,209.37/10,375.80
  6. Step 6: Final answer
    x = 5,171.86

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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.