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Finding the Fourth Proportional to 62,768.88, 86,621.00 and 34,476.39

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Solution

The fourth proportional to 62,768.88, 86,621.00 and 34,476.39 is: 47,577.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,768.88 : 86,621.00 = 34,476.39 : x
  2. Step 2: Convert to fraction form
    62,768.88/86,621.00 = 34,476.39/x
  3. Step 3: Cross multiply
    62,768.88x = 86,621.00 × 34,476.39
  4. Step 4: Simplify right side
    62,768.88x = 2,986,379,205.81
  5. Step 5: Solve for x
    x = 2,986,379,205.81/62,768.88
  6. Step 6: Final answer
    x = 47,577.39

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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.