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Finding the Fourth Proportional to 22,611.28, 33,916.88 and 8,760.24

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Solution

The fourth proportional to 22,611.28, 33,916.88 and 8,760.24 is: 13,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.28 : 33,916.88 = 8,760.24 : x
  2. Step 2: Convert to fraction form
    22,611.28/33,916.88 = 8,760.24/x
  3. Step 3: Cross multiply
    22,611.28x = 33,916.88 × 8,760.24
  4. Step 4: Simplify right side
    22,611.28x = 297,120,008.85
  5. Step 5: Solve for x
    x = 297,120,008.85/22,611.28
  6. Step 6: Final answer
    x = 13,140.34

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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.