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Finding the Fourth Proportional to 51,992.96, 71,749.94 and 28,119.56

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Solution

The fourth proportional to 51,992.96, 71,749.94 and 28,119.56 is: 38,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,992.96 : 71,749.94 = 28,119.56 : x
  2. Step 2: Convert to fraction form
    51,992.96/71,749.94 = 28,119.56/x
  3. Step 3: Cross multiply
    51,992.96x = 71,749.94 × 28,119.56
  4. Step 4: Simplify right side
    51,992.96x = 2,017,576,243.48
  5. Step 5: Solve for x
    x = 2,017,576,243.48/51,992.96
  6. Step 6: Final answer
    x = 38,804.80

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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.