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Finding the Fourth Proportional to 49,289.80, 73,934.70 and 14,230.60

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Solution

The fourth proportional to 49,289.80, 73,934.70 and 14,230.60 is: 21,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,289.80 : 73,934.70 = 14,230.60 : x
  2. Step 2: Convert to fraction form
    49,289.80/73,934.70 = 14,230.60/x
  3. Step 3: Cross multiply
    49,289.80x = 73,934.70 × 14,230.60
  4. Step 4: Simplify right side
    49,289.80x = 1,052,135,141.82
  5. Step 5: Solve for x
    x = 1,052,135,141.82/49,289.80
  6. Step 6: Final answer
    x = 21,345.90

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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.