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Finding the Fourth Proportional to 49,217.80, 73,826.70 and 48,780.40

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Solution

The fourth proportional to 49,217.80, 73,826.70 and 48,780.40 is: 73,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,217.80 : 73,826.70 = 48,780.40 : x
  2. Step 2: Convert to fraction form
    49,217.80/73,826.70 = 48,780.40/x
  3. Step 3: Cross multiply
    49,217.80x = 73,826.70 × 48,780.40
  4. Step 4: Simplify right side
    49,217.80x = 3,601,295,956.68
  5. Step 5: Solve for x
    x = 3,601,295,956.68/49,217.80
  6. Step 6: Final answer
    x = 73,170.60

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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.