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Finding the Fourth Proportional to 62,708.52, 94,065.90 and 20,571.56

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Solution

The fourth proportional to 62,708.52, 94,065.90 and 20,571.56 is: 30,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,708.52 : 94,065.90 = 20,571.56 : x
  2. Step 2: Convert to fraction form
    62,708.52/94,065.90 = 20,571.56/x
  3. Step 3: Cross multiply
    62,708.52x = 94,065.90 × 20,571.56
  4. Step 4: Simplify right side
    62,708.52x = 1,935,082,305.80
  5. Step 5: Solve for x
    x = 1,935,082,305.80/62,708.52
  6. Step 6: Final answer
    x = 30,858.36

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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.