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Finding the Fourth Proportional to 48,951.74, 73,469.23 and 19,390.19

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Solution

The fourth proportional to 48,951.74, 73,469.23 and 19,390.19 is: 29,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,951.74 : 73,469.23 = 19,390.19 : x
  2. Step 2: Convert to fraction form
    48,951.74/73,469.23 = 19,390.19/x
  3. Step 3: Cross multiply
    48,951.74x = 73,469.23 × 19,390.19
  4. Step 4: Simplify right side
    48,951.74x = 1,424,581,913.03
  5. Step 5: Solve for x
    x = 1,424,581,913.03/48,951.74
  6. Step 6: Final answer
    x = 29,101.76

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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.