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Finding the Fourth Proportional to 48,721.80, 73,082.70 and 27,653.70

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Solution

The fourth proportional to 48,721.80, 73,082.70 and 27,653.70 is: 41,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,721.80 : 73,082.70 = 27,653.70 : x
  2. Step 2: Convert to fraction form
    48,721.80/73,082.70 = 27,653.70/x
  3. Step 3: Cross multiply
    48,721.80x = 73,082.70 × 27,653.70
  4. Step 4: Simplify right side
    48,721.80x = 2,021,007,060.99
  5. Step 5: Solve for x
    x = 2,021,007,060.99/48,721.80
  6. Step 6: Final answer
    x = 41,480.55

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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.