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Finding the Fourth Proportional to 11,903.80, 17,855.70 and 3,583.48

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Solution

The fourth proportional to 11,903.80, 17,855.70 and 3,583.48 is: 5,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.80 : 17,855.70 = 3,583.48 : x
  2. Step 2: Convert to fraction form
    11,903.80/17,855.70 = 3,583.48/x
  3. Step 3: Cross multiply
    11,903.80x = 17,855.70 × 3,583.48
  4. Step 4: Simplify right side
    11,903.80x = 63,985,543.84
  5. Step 5: Solve for x
    x = 63,985,543.84/11,903.80
  6. Step 6: Final answer
    x = 5,375.22

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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.