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Finding the Fourth Proportional to 48,975.49, 73,490.92 and 20,892.89

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Solution

The fourth proportional to 48,975.49, 73,490.92 and 20,892.89 is: 31,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,975.49 : 73,490.92 = 20,892.89 : x
  2. Step 2: Convert to fraction form
    48,975.49/73,490.92 = 20,892.89/x
  3. Step 3: Cross multiply
    48,975.49x = 73,490.92 × 20,892.89
  4. Step 4: Simplify right side
    48,975.49x = 1,535,437,707.56
  5. Step 5: Solve for x
    x = 1,535,437,707.56/48,975.49
  6. Step 6: Final answer
    x = 31,351.15

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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.