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Finding the Fourth Proportional to 16,941.80, 23,380.43 and 9,388.11

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Solution

The fourth proportional to 16,941.80, 23,380.43 and 9,388.11 is: 12,956.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,941.80 : 23,380.43 = 9,388.11 : x
  2. Step 2: Convert to fraction form
    16,941.80/23,380.43 = 9,388.11/x
  3. Step 3: Cross multiply
    16,941.80x = 23,380.43 × 9,388.11
  4. Step 4: Simplify right side
    16,941.80x = 219,498,048.69
  5. Step 5: Solve for x
    x = 219,498,048.69/16,941.80
  6. Step 6: Final answer
    x = 12,956.01

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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.