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Finding the Fourth Proportional to 62,811, 86,679.23 and 34,516.89

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Solution

The fourth proportional to 62,811, 86,679.23 and 34,516.89 is: 47,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,811 : 86,679.23 = 34,516.89 : x
  2. Step 2: Convert to fraction form
    62,811/86,679.23 = 34,516.89/x
  3. Step 3: Cross multiply
    62,811x = 86,679.23 × 34,516.89
  4. Step 4: Simplify right side
    62,811x = 2,991,897,274.61
  5. Step 5: Solve for x
    x = 2,991,897,274.61/62,811
  6. Step 6: Final answer
    x = 47,633.33

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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.