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Finding the Fourth Proportional to 70,520.49, 105,533.55 and 50,551.97

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Solution

The fourth proportional to 70,520.49, 105,533.55 and 50,551.97 is: 75,650.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.49 : 105,533.55 = 50,551.97 : x
  2. Step 2: Convert to fraction form
    70,520.49/105,533.55 = 50,551.97/x
  3. Step 3: Cross multiply
    70,520.49x = 105,533.55 × 50,551.97
  4. Step 4: Simplify right side
    70,520.49x = 5,334,928,325.93
  5. Step 5: Solve for x
    x = 5,334,928,325.93/70,520.49
  6. Step 6: Final answer
    x = 75,650.76

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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.