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Finding the Fourth Proportional to 73,410.56, 109,966.80 and 33,912.80

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Solution

The fourth proportional to 73,410.56, 109,966.80 and 33,912.80 is: 50,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,410.56 : 109,966.80 = 33,912.80 : x
  2. Step 2: Convert to fraction form
    73,410.56/109,966.80 = 33,912.80/x
  3. Step 3: Cross multiply
    73,410.56x = 109,966.80 × 33,912.80
  4. Step 4: Simplify right side
    73,410.56x = 3,729,282,095.04
  5. Step 5: Solve for x
    x = 3,729,282,095.04/73,410.56
  6. Step 6: Final answer
    x = 50,800.35

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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.