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Finding the Fourth Proportional to 48,809.65, 73,186.73 and 19,211.44

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Solution

The fourth proportional to 48,809.65, 73,186.73 and 19,211.44 is: 28,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,809.65 : 73,186.73 = 19,211.44 : x
  2. Step 2: Convert to fraction form
    48,809.65/73,186.73 = 19,211.44/x
  3. Step 3: Cross multiply
    48,809.65x = 73,186.73 × 19,211.44
  4. Step 4: Simplify right side
    48,809.65x = 1,406,022,010.20
  5. Step 5: Solve for x
    x = 1,406,022,010.20/48,809.65
  6. Step 6: Final answer
    x = 28,806.23

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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.