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Finding the Fourth Proportional to 39,687.52, 54,764.79 and 23,771.56

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Solution

The fourth proportional to 39,687.52, 54,764.79 and 23,771.56 is: 32,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,687.52 : 54,764.79 = 23,771.56 : x
  2. Step 2: Convert to fraction form
    39,687.52/54,764.79 = 23,771.56/x
  3. Step 3: Cross multiply
    39,687.52x = 54,764.79 × 23,771.56
  4. Step 4: Simplify right side
    39,687.52x = 1,301,844,491.37
  5. Step 5: Solve for x
    x = 1,301,844,491.37/39,687.52
  6. Step 6: Final answer
    x = 32,802.36

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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.