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Finding the Fourth Proportional to 22,005.86, 30,367.91 and 11,934.32

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Solution

The fourth proportional to 22,005.86, 30,367.91 and 11,934.32 is: 16,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.86 : 30,367.91 = 11,934.32 : x
  2. Step 2: Convert to fraction form
    22,005.86/30,367.91 = 11,934.32/x
  3. Step 3: Cross multiply
    22,005.86x = 30,367.91 × 11,934.32
  4. Step 4: Simplify right side
    22,005.86x = 362,420,233.67
  5. Step 5: Solve for x
    x = 362,420,233.67/22,005.86
  6. Step 6: Final answer
    x = 16,469.26

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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.