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Finding the Fourth Proportional to 57,986.63, 80,021.54 and 32,840.99

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Solution

The fourth proportional to 57,986.63, 80,021.54 and 32,840.99 is: 45,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,986.63 : 80,021.54 = 32,840.99 : x
  2. Step 2: Convert to fraction form
    57,986.63/80,021.54 = 32,840.99/x
  3. Step 3: Cross multiply
    57,986.63x = 80,021.54 × 32,840.99
  4. Step 4: Simplify right side
    57,986.63x = 2,627,986,276.92
  5. Step 5: Solve for x
    x = 2,627,986,276.92/57,986.63
  6. Step 6: Final answer
    x = 45,320.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.