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Finding the Fourth Proportional to 48,908.68, 73,344.30 and 20,811.16

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Solution

The fourth proportional to 48,908.68, 73,344.30 and 20,811.16 is: 31,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,908.68 : 73,344.30 = 20,811.16 : x
  2. Step 2: Convert to fraction form
    48,908.68/73,344.30 = 20,811.16/x
  3. Step 3: Cross multiply
    48,908.68x = 73,344.30 × 20,811.16
  4. Step 4: Simplify right side
    48,908.68x = 1,526,379,962.39
  5. Step 5: Solve for x
    x = 1,526,379,962.39/48,908.68
  6. Step 6: Final answer
    x = 31,208.77

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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.