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Finding the Fourth Proportional to 57,958.75, 86,938.13 and 16,405.75

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Solution

The fourth proportional to 57,958.75, 86,938.13 and 16,405.75 is: 24,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,958.75 : 86,938.13 = 16,405.75 : x
  2. Step 2: Convert to fraction form
    57,958.75/86,938.13 = 16,405.75/x
  3. Step 3: Cross multiply
    57,958.75x = 86,938.13 × 16,405.75
  4. Step 4: Simplify right side
    57,958.75x = 1,426,285,226.25
  5. Step 5: Solve for x
    x = 1,426,285,226.25/57,958.75
  6. Step 6: Final answer
    x = 24,608.63

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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.