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Finding the Fourth Proportional to 50,758.56, 70,048.68 and 27,789.99

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Solution

The fourth proportional to 50,758.56, 70,048.68 and 27,789.99 is: 38,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,758.56 : 70,048.68 = 27,789.99 : x
  2. Step 2: Convert to fraction form
    50,758.56/70,048.68 = 27,789.99/x
  3. Step 3: Cross multiply
    50,758.56x = 70,048.68 × 27,789.99
  4. Step 4: Simplify right side
    50,758.56x = 1,946,652,116.71
  5. Step 5: Solve for x
    x = 1,946,652,116.71/50,758.56
  6. Step 6: Final answer
    x = 38,351.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.