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Finding the Fourth Proportional to 16,932.80, 23,369.68 and 9,863.12

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Solution

The fourth proportional to 16,932.80, 23,369.68 and 9,863.12 is: 13,612.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,932.80 : 23,369.68 = 9,863.12 : x
  2. Step 2: Convert to fraction form
    16,932.80/23,369.68 = 9,863.12/x
  3. Step 3: Cross multiply
    16,932.80x = 23,369.68 × 9,863.12
  4. Step 4: Simplify right side
    16,932.80x = 230,497,958.20
  5. Step 5: Solve for x
    x = 230,497,958.20/16,932.80
  6. Step 6: Final answer
    x = 13,612.51

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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.