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Finding the Fourth Proportional to 39,231.40, 58,749.90 and 25,169.80

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Solution

The fourth proportional to 39,231.40, 58,749.90 and 25,169.80 is: 37,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,231.40 : 58,749.90 = 25,169.80 : x
  2. Step 2: Convert to fraction form
    39,231.40/58,749.90 = 25,169.80/x
  3. Step 3: Cross multiply
    39,231.40x = 58,749.90 × 25,169.80
  4. Step 4: Simplify right side
    39,231.40x = 1,478,723,233.02
  5. Step 5: Solve for x
    x = 1,478,723,233.02/39,231.40
  6. Step 6: Final answer
    x = 37,692.34

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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.