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Finding the Fourth Proportional to 17,690.80, 24,337.74 and 17,198.68

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Solution

The fourth proportional to 17,690.80, 24,337.74 and 17,198.68 is: 23,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.80 : 24,337.74 = 17,198.68 : x
  2. Step 2: Convert to fraction form
    17,690.80/24,337.74 = 17,198.68/x
  3. Step 3: Cross multiply
    17,690.80x = 24,337.74 × 17,198.68
  4. Step 4: Simplify right side
    17,690.80x = 418,577,002.18
  5. Step 5: Solve for x
    x = 418,577,002.18/17,690.80
  6. Step 6: Final answer
    x = 23,660.72

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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.