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Finding the Fourth Proportional to 51,494.88, 71,062.60 and 28,833.80

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Solution

The fourth proportional to 51,494.88, 71,062.60 and 28,833.80 is: 39,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,494.88 : 71,062.60 = 28,833.80 : x
  2. Step 2: Convert to fraction form
    51,494.88/71,062.60 = 28,833.80/x
  3. Step 3: Cross multiply
    51,494.88x = 71,062.60 × 28,833.80
  4. Step 4: Simplify right side
    51,494.88x = 2,049,004,795.88
  5. Step 5: Solve for x
    x = 2,049,004,795.88/51,494.88
  6. Step 6: Final answer
    x = 39,790.46

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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.