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Finding the Fourth Proportional to 22,415.70, 33,611.40 and 9,253.20

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Solution

The fourth proportional to 22,415.70, 33,611.40 and 9,253.20 is: 13,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,415.70 : 33,611.40 = 9,253.20 : x
  2. Step 2: Convert to fraction form
    22,415.70/33,611.40 = 9,253.20/x
  3. Step 3: Cross multiply
    22,415.70x = 33,611.40 × 9,253.20
  4. Step 4: Simplify right side
    22,415.70x = 311,013,006.48
  5. Step 5: Solve for x
    x = 311,013,006.48/22,415.70
  6. Step 6: Final answer
    x = 13,874.78

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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.