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Finding the Fourth Proportional to 57,625.70, 86,438.40 and 16,072.70

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Solution

The fourth proportional to 57,625.70, 86,438.40 and 16,072.70 is: 24,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,625.70 : 86,438.40 = 16,072.70 : x
  2. Step 2: Convert to fraction form
    57,625.70/86,438.40 = 16,072.70/x
  3. Step 3: Cross multiply
    57,625.70x = 86,438.40 × 16,072.70
  4. Step 4: Simplify right side
    57,625.70x = 1,389,298,471.68
  5. Step 5: Solve for x
    x = 1,389,298,471.68/57,625.70
  6. Step 6: Final answer
    x = 24,109.01

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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.