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Finding the Fourth Proportional to 12,658.44, 17,467.14 and 6,992.85

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Solution

The fourth proportional to 12,658.44, 17,467.14 and 6,992.85 is: 9,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.44 : 17,467.14 = 6,992.85 : x
  2. Step 2: Convert to fraction form
    12,658.44/17,467.14 = 6,992.85/x
  3. Step 3: Cross multiply
    12,658.44x = 17,467.14 × 6,992.85
  4. Step 4: Simplify right side
    12,658.44x = 122,145,083.42
  5. Step 5: Solve for x
    x = 122,145,083.42/12,658.44
  6. Step 6: Final answer
    x = 9,649.30

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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.