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Finding the Fourth Proportional to 14,339.80, 21,525.90 and 11,067.40

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Solution

The fourth proportional to 14,339.80, 21,525.90 and 11,067.40 is: 16,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.80 : 21,525.90 = 11,067.40 : x
  2. Step 2: Convert to fraction form
    14,339.80/21,525.90 = 11,067.40/x
  3. Step 3: Cross multiply
    14,339.80x = 21,525.90 × 11,067.40
  4. Step 4: Simplify right side
    14,339.80x = 238,235,745.66
  5. Step 5: Solve for x
    x = 238,235,745.66/14,339.80
  6. Step 6: Final answer
    x = 16,613.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.