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Finding the Fourth Proportional to 62,679.26, 94,019.80 and 20,562.65

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Solution

The fourth proportional to 62,679.26, 94,019.80 and 20,562.65 is: 30,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,679.26 : 94,019.80 = 20,562.65 : x
  2. Step 2: Convert to fraction form
    62,679.26/94,019.80 = 20,562.65/x
  3. Step 3: Cross multiply
    62,679.26x = 94,019.80 × 20,562.65
  4. Step 4: Simplify right side
    62,679.26x = 1,933,296,424.11
  5. Step 5: Solve for x
    x = 1,933,296,424.11/62,679.26
  6. Step 6: Final answer
    x = 30,844.28

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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.