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Finding the Fourth Proportional to 75,278.72, 112,961.83 and 33,725.72

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Solution

The fourth proportional to 75,278.72, 112,961.83 and 33,725.72 is: 50,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,278.72 : 112,961.83 = 33,725.72 : x
  2. Step 2: Convert to fraction form
    75,278.72/112,961.83 = 33,725.72/x
  3. Step 3: Cross multiply
    75,278.72x = 112,961.83 × 33,725.72
  4. Step 4: Simplify right side
    75,278.72x = 3,809,719,247.36
  5. Step 5: Solve for x
    x = 3,809,719,247.36/75,278.72
  6. Step 6: Final answer
    x = 50,608.18

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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.