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Finding the Fourth Proportional to 16,941.90, 23,380.08 and 9,388.86

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Solution

The fourth proportional to 16,941.90, 23,380.08 and 9,388.86 is: 12,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,941.90 : 23,380.08 = 9,388.86 : x
  2. Step 2: Convert to fraction form
    16,941.90/23,380.08 = 9,388.86/x
  3. Step 3: Cross multiply
    16,941.90x = 23,380.08 × 9,388.86
  4. Step 4: Simplify right side
    16,941.90x = 219,512,175.03
  5. Step 5: Solve for x
    x = 219,512,175.03/16,941.90
  6. Step 6: Final answer
    x = 12,956.76

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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.