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Finding the Fourth Proportional to 49,993.68, 74,990.55 and 13,057.68

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Solution

The fourth proportional to 49,993.68, 74,990.55 and 13,057.68 is: 19,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,993.68 : 74,990.55 = 13,057.68 : x
  2. Step 2: Convert to fraction form
    49,993.68/74,990.55 = 13,057.68/x
  3. Step 3: Cross multiply
    49,993.68x = 74,990.55 × 13,057.68
  4. Step 4: Simplify right side
    49,993.68x = 979,202,604.92
  5. Step 5: Solve for x
    x = 979,202,604.92/49,993.68
  6. Step 6: Final answer
    x = 19,586.53

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Similar ratio
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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.