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Finding the Fourth Proportional to 49,285.80, 73,928.70 and 18,133.20

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Solution

The fourth proportional to 49,285.80, 73,928.70 and 18,133.20 is: 27,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,285.80 : 73,928.70 = 18,133.20 : x
  2. Step 2: Convert to fraction form
    49,285.80/73,928.70 = 18,133.20/x
  3. Step 3: Cross multiply
    49,285.80x = 73,928.70 × 18,133.20
  4. Step 4: Simplify right side
    49,285.80x = 1,340,563,902.84
  5. Step 5: Solve for x
    x = 1,340,563,902.84/49,285.80
  6. Step 6: Final answer
    x = 27,199.80

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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.