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Finding the Fourth Proportional to 57,616.60, 86,522.10 and 37,982.20

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Solution

The fourth proportional to 57,616.60, 86,522.10 and 37,982.20 is: 57,037.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,616.60 : 86,522.10 = 37,982.20 : x
  2. Step 2: Convert to fraction form
    57,616.60/86,522.10 = 37,982.20/x
  3. Step 3: Cross multiply
    57,616.60x = 86,522.10 × 37,982.20
  4. Step 4: Simplify right side
    57,616.60x = 3,286,299,706.62
  5. Step 5: Solve for x
    x = 3,286,299,706.62/57,616.60
  6. Step 6: Final answer
    x = 57,037.38

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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.