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Finding the Fourth Proportional to 6,648,217.80, 9,977,241.90 and 2,661,990.60

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Solution

The fourth proportional to 6,648,217.80, 9,977,241.90 and 2,661,990.60 is: 3,994,953.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648,217.80 : 9,977,241.90 = 2,661,990.60 : x
  2. Step 2: Convert to fraction form
    6,648,217.80/9,977,241.90 = 2,661,990.60/x
  3. Step 3: Cross multiply
    6,648,217.80x = 9,977,241.90 × 2,661,990.60
  4. Step 4: Simplify right side
    6,648,217.80x = 26,559,324,151,726.14
  5. Step 5: Solve for x
    x = 26,559,324,151,726.14/6,648,217.80
  6. Step 6: Final answer
    x = 3,994,953.98

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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.