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Finding the Fourth Proportional to 22,415.40, 33,620.40 and 9,266.40

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Solution

The fourth proportional to 22,415.40, 33,620.40 and 9,266.40 is: 13,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,415.40 : 33,620.40 = 9,266.40 : x
  2. Step 2: Convert to fraction form
    22,415.40/33,620.40 = 9,266.40/x
  3. Step 3: Cross multiply
    22,415.40x = 33,620.40 × 9,266.40
  4. Step 4: Simplify right side
    22,415.40x = 311,540,074.56
  5. Step 5: Solve for x
    x = 311,540,074.56/22,415.40
  6. Step 6: Final answer
    x = 13,898.48

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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.