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Finding the Fourth Proportional to 14,339.88, 19,791.86 and 9,162.44

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Solution

The fourth proportional to 14,339.88, 19,791.86 and 9,162.44 is: 12,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.88 : 19,791.86 = 9,162.44 : x
  2. Step 2: Convert to fraction form
    14,339.88/19,791.86 = 9,162.44/x
  3. Step 3: Cross multiply
    14,339.88x = 19,791.86 × 9,162.44
  4. Step 4: Simplify right side
    14,339.88x = 181,341,729.74
  5. Step 5: Solve for x
    x = 181,341,729.74/14,339.88
  6. Step 6: Final answer
    x = 12,645.97

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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.