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Finding the Fourth Proportional to 6,607.60, 9,908.20 and 3,682.80

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Solution

The fourth proportional to 6,607.60, 9,908.20 and 3,682.80 is: 5,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.60 : 9,908.20 = 3,682.80 : x
  2. Step 2: Convert to fraction form
    6,607.60/9,908.20 = 3,682.80/x
  3. Step 3: Cross multiply
    6,607.60x = 9,908.20 × 3,682.80
  4. Step 4: Simplify right side
    6,607.60x = 36,489,918.96
  5. Step 5: Solve for x
    x = 36,489,918.96/6,607.60
  6. Step 6: Final answer
    x = 5,522.42

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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.