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Finding the Fourth Proportional to 50,679, 76,028.62 and 15,617.16

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Solution

The fourth proportional to 50,679, 76,028.62 and 15,617.16 is: 23,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,679 : 76,028.62 = 15,617.16 : x
  2. Step 2: Convert to fraction form
    50,679/76,028.62 = 15,617.16/x
  3. Step 3: Cross multiply
    50,679x = 76,028.62 × 15,617.16
  4. Step 4: Simplify right side
    50,679x = 1,187,351,123.12
  5. Step 5: Solve for x
    x = 1,187,351,123.12/50,679
  6. Step 6: Final answer
    x = 23,428.86

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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.