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Finding the Fourth Proportional to 48,933.80, 73,400.70 and 33,187.40

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Solution

The fourth proportional to 48,933.80, 73,400.70 and 33,187.40 is: 49,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,933.80 : 73,400.70 = 33,187.40 : x
  2. Step 2: Convert to fraction form
    48,933.80/73,400.70 = 33,187.40/x
  3. Step 3: Cross multiply
    48,933.80x = 73,400.70 × 33,187.40
  4. Step 4: Simplify right side
    48,933.80x = 2,435,978,391.18
  5. Step 5: Solve for x
    x = 2,435,978,391.18/48,933.80
  6. Step 6: Final answer
    x = 49,781.10

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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.