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Finding the Fourth Proportional to 6,659,672.69, 9,985,463.89 and 2,611,310.24

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Solution

The fourth proportional to 6,659,672.69, 9,985,463.89 and 2,611,310.24 is: 3,915,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,672.69 : 9,985,463.89 = 2,611,310.24 : x
  2. Step 2: Convert to fraction form
    6,659,672.69/9,985,463.89 = 2,611,310.24/x
  3. Step 3: Cross multiply
    6,659,672.69x = 9,985,463.89 × 2,611,310.24
  4. Step 4: Simplify right side
    6,659,672.69x = 26,075,144,125,542.62
  5. Step 5: Solve for x
    x = 26,075,144,125,542.62/6,659,672.69
  6. Step 6: Final answer
    x = 3,915,379.23

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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.