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Finding the Fourth Proportional to 62,658.81, 94,007.72 and 20,539.22

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Solution

The fourth proportional to 62,658.81, 94,007.72 and 20,539.22 is: 30,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,658.81 : 94,007.72 = 20,539.22 : x
  2. Step 2: Convert to fraction form
    62,658.81/94,007.72 = 20,539.22/x
  3. Step 3: Cross multiply
    62,658.81x = 94,007.72 × 20,539.22
  4. Step 4: Simplify right side
    62,658.81x = 1,930,844,824.09
  5. Step 5: Solve for x
    x = 1,930,844,824.09/62,658.81
  6. Step 6: Final answer
    x = 30,815.22

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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.