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Finding the Fourth Proportional to 62,471.90, 93,707.76 and 20,351.91

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Solution

The fourth proportional to 62,471.90, 93,707.76 and 20,351.91 is: 30,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,471.90 : 93,707.76 = 20,351.91 : x
  2. Step 2: Convert to fraction form
    62,471.90/93,707.76 = 20,351.91/x
  3. Step 3: Cross multiply
    62,471.90x = 93,707.76 × 20,351.91
  4. Step 4: Simplify right side
    62,471.90x = 1,907,131,429.28
  5. Step 5: Solve for x
    x = 1,907,131,429.28/62,471.90
  6. Step 6: Final answer
    x = 30,527.83

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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.