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Finding the Fourth Proportional to 80,015.52, 120,038.16 and 33,272.16

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Solution

The fourth proportional to 80,015.52, 120,038.16 and 33,272.16 is: 49,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,015.52 : 120,038.16 = 33,272.16 : x
  2. Step 2: Convert to fraction form
    80,015.52/120,038.16 = 33,272.16/x
  3. Step 3: Cross multiply
    80,015.52x = 120,038.16 × 33,272.16
  4. Step 4: Simplify right side
    80,015.52x = 3,993,928,865.63
  5. Step 5: Solve for x
    x = 3,993,928,865.63/80,015.52
  6. Step 6: Final answer
    x = 49,914.43

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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.