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Finding the Fourth Proportional to 62,481.51, 93,729.56 and 20,359.89

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Solution

The fourth proportional to 62,481.51, 93,729.56 and 20,359.89 is: 30,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,481.51 : 93,729.56 = 20,359.89 : x
  2. Step 2: Convert to fraction form
    62,481.51/93,729.56 = 20,359.89/x
  3. Step 3: Cross multiply
    62,481.51x = 93,729.56 × 20,359.89
  4. Step 4: Simplify right side
    62,481.51x = 1,908,323,429.55
  5. Step 5: Solve for x
    x = 1,908,323,429.55/62,481.51
  6. Step 6: Final answer
    x = 30,542.21

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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.