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Finding the Fourth Proportional to 62,768.94, 86,623.14 and 34,474.64

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Solution

The fourth proportional to 62,768.94, 86,623.14 and 34,474.64 is: 47,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,768.94 : 86,623.14 = 34,474.64 : x
  2. Step 2: Convert to fraction form
    62,768.94/86,623.14 = 34,474.64/x
  3. Step 3: Cross multiply
    62,768.94x = 86,623.14 × 34,474.64
  4. Step 4: Simplify right side
    62,768.94x = 2,986,301,134.05
  5. Step 5: Solve for x
    x = 2,986,301,134.05/62,768.94
  6. Step 6: Final answer
    x = 47,576.10

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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.