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Finding the Fourth Proportional to 48,993.78, 73,482.79 and 13,446.80

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Solution

The fourth proportional to 48,993.78, 73,482.79 and 13,446.80 is: 20,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,993.78 : 73,482.79 = 13,446.80 : x
  2. Step 2: Convert to fraction form
    48,993.78/73,482.79 = 13,446.80/x
  3. Step 3: Cross multiply
    48,993.78x = 73,482.79 × 13,446.80
  4. Step 4: Simplify right side
    48,993.78x = 988,108,380.57
  5. Step 5: Solve for x
    x = 988,108,380.57/48,993.78
  6. Step 6: Final answer
    x = 20,168.04

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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.