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Finding the Fourth Proportional to 50,709.75, 76,064.93 and 13,773.75

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Solution

The fourth proportional to 50,709.75, 76,064.93 and 13,773.75 is: 20,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,709.75 : 76,064.93 = 13,773.75 : x
  2. Step 2: Convert to fraction form
    50,709.75/76,064.93 = 13,773.75/x
  3. Step 3: Cross multiply
    50,709.75x = 76,064.93 × 13,773.75
  4. Step 4: Simplify right side
    50,709.75x = 1,047,699,260.72
  5. Step 5: Solve for x
    x = 1,047,699,260.72/50,709.75
  6. Step 6: Final answer
    x = 20,660.71

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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.