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Finding the Fourth Proportional to 41,978.56, 62,989.68 and 18,599.50

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Solution

The fourth proportional to 41,978.56, 62,989.68 and 18,599.50 is: 27,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,978.56 : 62,989.68 = 18,599.50 : x
  2. Step 2: Convert to fraction form
    41,978.56/62,989.68 = 18,599.50/x
  3. Step 3: Cross multiply
    41,978.56x = 62,989.68 × 18,599.50
  4. Step 4: Simplify right side
    41,978.56x = 1,171,576,553.16
  5. Step 5: Solve for x
    x = 1,171,576,553.16/41,978.56
  6. Step 6: Final answer
    x = 27,908.93

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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.