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Finding the Fourth Proportional to 80,522.70, 110,938.47 and 62,310.80

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Solution

The fourth proportional to 80,522.70, 110,938.47 and 62,310.80 is: 85,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,522.70 : 110,938.47 = 62,310.80 : x
  2. Step 2: Convert to fraction form
    80,522.70/110,938.47 = 62,310.80/x
  3. Step 3: Cross multiply
    80,522.70x = 110,938.47 × 62,310.80
  4. Step 4: Simplify right side
    80,522.70x = 6,912,664,378.62
  5. Step 5: Solve for x
    x = 6,912,664,378.62/80,522.70
  6. Step 6: Final answer
    x = 85,847.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.