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Finding the Fourth Proportional to 68,704.20, 103,056.30 and 33,712.20

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Solution

The fourth proportional to 68,704.20, 103,056.30 and 33,712.20 is: 50,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,704.20 : 103,056.30 = 33,712.20 : x
  2. Step 2: Convert to fraction form
    68,704.20/103,056.30 = 33,712.20/x
  3. Step 3: Cross multiply
    68,704.20x = 103,056.30 × 33,712.20
  4. Step 4: Simplify right side
    68,704.20x = 3,474,254,596.86
  5. Step 5: Solve for x
    x = 3,474,254,596.86/68,704.20
  6. Step 6: Final answer
    x = 50,568.30

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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.