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Finding the Fourth Proportional to 71,230.64, 106,843.56 and 33,808.64

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Solution

The fourth proportional to 71,230.64, 106,843.56 and 33,808.64 is: 50,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,230.64 : 106,843.56 = 33,808.64 : x
  2. Step 2: Convert to fraction form
    71,230.64/106,843.56 = 33,808.64/x
  3. Step 3: Cross multiply
    71,230.64x = 106,843.56 × 33,808.64
  4. Step 4: Simplify right side
    71,230.64x = 3,612,235,456.36
  5. Step 5: Solve for x
    x = 3,612,235,456.36/71,230.64
  6. Step 6: Final answer
    x = 50,711.82

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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.