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Finding the Fourth Proportional to 49,005.70, 73,499.77 and 12,982.39

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Solution

The fourth proportional to 49,005.70, 73,499.77 and 12,982.39 is: 19,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,005.70 : 73,499.77 = 12,982.39 : x
  2. Step 2: Convert to fraction form
    49,005.70/73,499.77 = 12,982.39/x
  3. Step 3: Cross multiply
    49,005.70x = 73,499.77 × 12,982.39
  4. Step 4: Simplify right side
    49,005.70x = 954,202,679.05
  5. Step 5: Solve for x
    x = 954,202,679.05/49,005.70
  6. Step 6: Final answer
    x = 19,471.26

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1.5x scale

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.