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Finding the Fourth Proportional to 34,147.20, 51,220.80 and 33,628.80

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Solution

The fourth proportional to 34,147.20, 51,220.80 and 33,628.80 is: 50,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,147.20 : 51,220.80 = 33,628.80 : x
  2. Step 2: Convert to fraction form
    34,147.20/51,220.80 = 33,628.80/x
  3. Step 3: Cross multiply
    34,147.20x = 51,220.80 × 33,628.80
  4. Step 4: Simplify right side
    34,147.20x = 1,722,494,039.04
  5. Step 5: Solve for x
    x = 1,722,494,039.04/34,147.20
  6. Step 6: Final answer
    x = 50,443.20

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1.5x scale

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.