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Finding the Fourth Proportional to 25,978.94, 38,906.55 and 16,589.87

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Solution

The fourth proportional to 25,978.94, 38,906.55 and 16,589.87 is: 24,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,978.94 : 38,906.55 = 16,589.87 : x
  2. Step 2: Convert to fraction form
    25,978.94/38,906.55 = 16,589.87/x
  3. Step 3: Cross multiply
    25,978.94x = 38,906.55 × 16,589.87
  4. Step 4: Simplify right side
    25,978.94x = 645,454,703.91
  5. Step 5: Solve for x
    x = 645,454,703.91/25,978.94
  6. Step 6: Final answer
    x = 24,845.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.