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Finding the Fourth Proportional to 70,520.92, 105,729.54 and 33,610.84

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Solution

The fourth proportional to 70,520.92, 105,729.54 and 33,610.84 is: 50,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.92 : 105,729.54 = 33,610.84 : x
  2. Step 2: Convert to fraction form
    70,520.92/105,729.54 = 33,610.84/x
  3. Step 3: Cross multiply
    70,520.92x = 105,729.54 × 33,610.84
  4. Step 4: Simplify right side
    70,520.92x = 3,553,658,652.21
  5. Step 5: Solve for x
    x = 3,553,658,652.21/70,520.92
  6. Step 6: Final answer
    x = 50,391.55

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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.