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Finding the Fourth Proportional to 3,658.42, 5,486.52 and 3,073.60

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Solution

The fourth proportional to 3,658.42, 5,486.52 and 3,073.60 is: 4,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.42 : 5,486.52 = 3,073.60 : x
  2. Step 2: Convert to fraction form
    3,658.42/5,486.52 = 3,073.60/x
  3. Step 3: Cross multiply
    3,658.42x = 5,486.52 × 3,073.60
  4. Step 4: Simplify right side
    3,658.42x = 16,863,367.87
  5. Step 5: Solve for x
    x = 16,863,367.87/3,658.42
  6. Step 6: Final answer
    x = 4,609.47

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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.