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Finding the Fourth Proportional to 6,647,266.70, 9,963,026.85 and 4,962,401.90

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Solution

The fourth proportional to 6,647,266.70, 9,963,026.85 and 4,962,401.90 is: 7,437,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647,266.70 : 9,963,026.85 = 4,962,401.90 : x
  2. Step 2: Convert to fraction form
    6,647,266.70/9,963,026.85 = 4,962,401.90/x
  3. Step 3: Cross multiply
    6,647,266.70x = 9,963,026.85 × 4,962,401.90
  4. Step 4: Simplify right side
    6,647,266.70x = 49,440,543,370,191.02
  5. Step 5: Solve for x
    x = 49,440,543,370,191.02/6,647,266.70
  6. Step 6: Final answer
    x = 7,437,725.25

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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.