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Finding the Fourth Proportional to 62,912.88, 86,817.96 and 34,617.96

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Solution

The fourth proportional to 62,912.88, 86,817.96 and 34,617.96 is: 47,771.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,912.88 : 86,817.96 = 34,617.96 : x
  2. Step 2: Convert to fraction form
    62,912.88/86,817.96 = 34,617.96/x
  3. Step 3: Cross multiply
    62,912.88x = 86,817.96 × 34,617.96
  4. Step 4: Simplify right side
    62,912.88x = 3,005,460,666.56
  5. Step 5: Solve for x
    x = 3,005,460,666.56/62,912.88
  6. Step 6: Final answer
    x = 47,771.79

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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.