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Finding the Fourth Proportional to 5,583,381.80, 8,375,072.70 and 3,670,194.20

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Solution

The fourth proportional to 5,583,381.80, 8,375,072.70 and 3,670,194.20 is: 5,505,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,583,381.80 : 8,375,072.70 = 3,670,194.20 : x
  2. Step 2: Convert to fraction form
    5,583,381.80/8,375,072.70 = 3,670,194.20/x
  3. Step 3: Cross multiply
    5,583,381.80x = 8,375,072.70 × 3,670,194.20
  4. Step 4: Simplify right side
    5,583,381.80x = 30,738,143,248,118.34
  5. Step 5: Solve for x
    x = 30,738,143,248,118.34/5,583,381.80
  6. Step 6: Final answer
    x = 5,505,291.30

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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.