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Finding the Fourth Proportional to 62,912.85, 86,818.14 and 34,231.29

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Solution

The fourth proportional to 62,912.85, 86,818.14 and 34,231.29 is: 47,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,912.85 : 86,818.14 = 34,231.29 : x
  2. Step 2: Convert to fraction form
    62,912.85/86,818.14 = 34,231.29/x
  3. Step 3: Cross multiply
    62,912.85x = 86,818.14 × 34,231.29
  4. Step 4: Simplify right side
    62,912.85x = 2,971,896,927.60
  5. Step 5: Solve for x
    x = 2,971,896,927.60/62,912.85
  6. Step 6: Final answer
    x = 47,238.31

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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.