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Finding the Fourth Proportional to 55,469.80, 83,211.90 and 27,404.20

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Solution

The fourth proportional to 55,469.80, 83,211.90 and 27,404.20 is: 41,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,469.80 : 83,211.90 = 27,404.20 : x
  2. Step 2: Convert to fraction form
    55,469.80/83,211.90 = 27,404.20/x
  3. Step 3: Cross multiply
    55,469.80x = 83,211.90 × 27,404.20
  4. Step 4: Simplify right side
    55,469.80x = 2,280,355,549.98
  5. Step 5: Solve for x
    x = 2,280,355,549.98/55,469.80
  6. Step 6: Final answer
    x = 41,109.86

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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.