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Finding the Fourth Proportional to 6,659,676.63, 9,985,469.81 and 2,611,314.25

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Solution

The fourth proportional to 6,659,676.63, 9,985,469.81 and 2,611,314.25 is: 3,915,385.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,676.63 : 9,985,469.81 = 2,611,314.25 : x
  2. Step 2: Convert to fraction form
    6,659,676.63/9,985,469.81 = 2,611,314.25/x
  3. Step 3: Cross multiply
    6,659,676.63x = 9,985,469.81 × 2,611,314.25
  4. Step 4: Simplify right side
    6,659,676.63x = 26,075,199,569,777.55
  5. Step 5: Solve for x
    x = 26,075,199,569,777.55/6,659,676.63
  6. Step 6: Final answer
    x = 3,915,385.24

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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.