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Finding the Fourth Proportional to 8,773.57, 13,161.17 and 2,930.64

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Solution

The fourth proportional to 8,773.57, 13,161.17 and 2,930.64 is: 4,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.57 : 13,161.17 = 2,930.64 : x
  2. Step 2: Convert to fraction form
    8,773.57/13,161.17 = 2,930.64/x
  3. Step 3: Cross multiply
    8,773.57x = 13,161.17 × 2,930.64
  4. Step 4: Simplify right side
    8,773.57x = 38,570,651.25
  5. Step 5: Solve for x
    x = 38,570,651.25/8,773.57
  6. Step 6: Final answer
    x = 4,396.23

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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.