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Finding the Fourth Proportional to 34,063.80, 51,022.80 and 28,231.80

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Solution

The fourth proportional to 34,063.80, 51,022.80 and 28,231.80 is: 42,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,063.80 : 51,022.80 = 28,231.80 : x
  2. Step 2: Convert to fraction form
    34,063.80/51,022.80 = 28,231.80/x
  3. Step 3: Cross multiply
    34,063.80x = 51,022.80 × 28,231.80
  4. Step 4: Simplify right side
    34,063.80x = 1,440,465,485.04
  5. Step 5: Solve for x
    x = 1,440,465,485.04/34,063.80
  6. Step 6: Final answer
    x = 42,287.28

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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.