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Finding the Fourth Proportional to 5,764,687.88, 7,954,580.34 and 3,186,018.05

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Solution

The fourth proportional to 5,764,687.88, 7,954,580.34 and 3,186,018.05 is: 4,396,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,764,687.88 : 7,954,580.34 = 3,186,018.05 : x
  2. Step 2: Convert to fraction form
    5,764,687.88/7,954,580.34 = 3,186,018.05/x
  3. Step 3: Cross multiply
    5,764,687.88x = 7,954,580.34 × 3,186,018.05
  4. Step 4: Simplify right side
    5,764,687.88x = 25,343,436,503,642.23
  5. Step 5: Solve for x
    x = 25,343,436,503,642.23/5,764,687.88
  6. Step 6: Final answer
    x = 4,396,324.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.