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Finding the Fourth Proportional to 69,790.20, 104,684.46 and 17,200.20

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Solution

The fourth proportional to 69,790.20, 104,684.46 and 17,200.20 is: 25,800.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,790.20 : 104,684.46 = 17,200.20 : x
  2. Step 2: Convert to fraction form
    69,790.20/104,684.46 = 17,200.20/x
  3. Step 3: Cross multiply
    69,790.20x = 104,684.46 × 17,200.20
  4. Step 4: Simplify right side
    69,790.20x = 1,800,593,648.89
  5. Step 5: Solve for x
    x = 1,800,593,648.89/69,790.20
  6. Step 6: Final answer
    x = 25,800.09

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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.