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Finding the Fourth Proportional to 16,658.82, 22,957.50 and 11,934.90

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Solution

The fourth proportional to 16,658.82, 22,957.50 and 11,934.90 is: 16,447.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.82 : 22,957.50 = 11,934.90 : x
  2. Step 2: Convert to fraction form
    16,658.82/22,957.50 = 11,934.90/x
  3. Step 3: Cross multiply
    16,658.82x = 22,957.50 × 11,934.90
  4. Step 4: Simplify right side
    16,658.82x = 273,995,466.75
  5. Step 5: Solve for x
    x = 273,995,466.75/16,658.82
  6. Step 6: Final answer
    x = 16,447.47

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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.