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Finding the Fourth Proportional to 51,658.44, 71,282.61 and 28,992.48

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Solution

The fourth proportional to 51,658.44, 71,282.61 and 28,992.48 is: 40,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,658.44 : 71,282.61 = 28,992.48 : x
  2. Step 2: Convert to fraction form
    51,658.44/71,282.61 = 28,992.48/x
  3. Step 3: Cross multiply
    51,658.44x = 71,282.61 × 28,992.48
  4. Step 4: Simplify right side
    51,658.44x = 2,066,659,644.77
  5. Step 5: Solve for x
    x = 2,066,659,644.77/51,658.44
  6. Step 6: Final answer
    x = 40,006.23

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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.