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Finding the Fourth Proportional to 48,517.33, 72,775.99 and 13,456.99

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Solution

The fourth proportional to 48,517.33, 72,775.99 and 13,456.99 is: 20,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,517.33 : 72,775.99 = 13,456.99 : x
  2. Step 2: Convert to fraction form
    48,517.33/72,775.99 = 13,456.99/x
  3. Step 3: Cross multiply
    48,517.33x = 72,775.99 × 13,456.99
  4. Step 4: Simplify right side
    48,517.33x = 979,345,769.67
  5. Step 5: Solve for x
    x = 979,345,769.67/48,517.33
  6. Step 6: Final answer
    x = 20,185.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.