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Finding the Fourth Proportional to 50,947.75, 70,308.03 and 28,591.75

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Solution

The fourth proportional to 50,947.75, 70,308.03 and 28,591.75 is: 39,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,947.75 : 70,308.03 = 28,591.75 : x
  2. Step 2: Convert to fraction form
    50,947.75/70,308.03 = 28,591.75/x
  3. Step 3: Cross multiply
    50,947.75x = 70,308.03 × 28,591.75
  4. Step 4: Simplify right side
    50,947.75x = 2,010,229,616.75
  5. Step 5: Solve for x
    x = 2,010,229,616.75/50,947.75
  6. Step 6: Final answer
    x = 39,456.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.