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Finding the Fourth Proportional to 50,509.85, 75,667.73 and 28,255.73

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Solution

The fourth proportional to 50,509.85, 75,667.73 and 28,255.73 is: 42,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,509.85 : 75,667.73 = 28,255.73 : x
  2. Step 2: Convert to fraction form
    50,509.85/75,667.73 = 28,255.73/x
  3. Step 3: Cross multiply
    50,509.85x = 75,667.73 × 28,255.73
  4. Step 4: Simplify right side
    50,509.85x = 2,138,046,428.98
  5. Step 5: Solve for x
    x = 2,138,046,428.98/50,509.85
  6. Step 6: Final answer
    x = 42,329.30

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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.