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Finding the Fourth Proportional to 48,828.56, 73,252.56 and 20,748.56

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Solution

The fourth proportional to 48,828.56, 73,252.56 and 20,748.56 is: 31,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,828.56 : 73,252.56 = 20,748.56 : x
  2. Step 2: Convert to fraction form
    48,828.56/73,252.56 = 20,748.56/x
  3. Step 3: Cross multiply
    48,828.56x = 73,252.56 × 20,748.56
  4. Step 4: Simplify right side
    48,828.56x = 1,519,885,136.31
  5. Step 5: Solve for x
    x = 1,519,885,136.31/48,828.56
  6. Step 6: Final answer
    x = 31,126.97

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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.