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Finding the Fourth Proportional to 51,960.67, 71,706.06 and 28,087.29

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Solution

The fourth proportional to 51,960.67, 71,706.06 and 28,087.29 is: 38,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,960.67 : 71,706.06 = 28,087.29 : x
  2. Step 2: Convert to fraction form
    51,960.67/71,706.06 = 28,087.29/x
  3. Step 3: Cross multiply
    51,960.67x = 71,706.06 × 28,087.29
  4. Step 4: Simplify right side
    51,960.67x = 2,014,028,761.54
  5. Step 5: Solve for x
    x = 2,014,028,761.54/51,960.67
  6. Step 6: Final answer
    x = 38,760.64

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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.