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Finding the Fourth Proportional to 62,821.44, 86,694.80 and 34,526.96

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Solution

The fourth proportional to 62,821.44, 86,694.80 and 34,526.96 is: 47,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,821.44 : 86,694.80 = 34,526.96 : x
  2. Step 2: Convert to fraction form
    62,821.44/86,694.80 = 34,526.96/x
  3. Step 3: Cross multiply
    62,821.44x = 86,694.80 × 34,526.96
  4. Step 4: Simplify right side
    62,821.44x = 2,993,307,891.81
  5. Step 5: Solve for x
    x = 2,993,307,891.81/62,821.44
  6. Step 6: Final answer
    x = 47,647.87

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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.