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Finding the Fourth Proportional to 22,354.79, 33,511.32 and 8,311.41

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Solution

The fourth proportional to 22,354.79, 33,511.32 and 8,311.41 is: 12,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,354.79 : 33,511.32 = 8,311.41 : x
  2. Step 2: Convert to fraction form
    22,354.79/33,511.32 = 8,311.41/x
  3. Step 3: Cross multiply
    22,354.79x = 33,511.32 × 8,311.41
  4. Step 4: Simplify right side
    22,354.79x = 278,526,320.16
  5. Step 5: Solve for x
    x = 278,526,320.16/22,354.79
  6. Step 6: Final answer
    x = 12,459.36

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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.