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Finding the Fourth Proportional to 70,970.88, 106,361.72 and 33,540.88

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Solution

The fourth proportional to 70,970.88, 106,361.72 and 33,540.88 is: 50,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,970.88 : 106,361.72 = 33,540.88 : x
  2. Step 2: Convert to fraction form
    70,970.88/106,361.72 = 33,540.88/x
  3. Step 3: Cross multiply
    70,970.88x = 106,361.72 × 33,540.88
  4. Step 4: Simplify right side
    70,970.88x = 3,567,465,687.11
  5. Step 5: Solve for x
    x = 3,567,465,687.11/70,970.88
  6. Step 6: Final answer
    x = 50,266.61

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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.