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Finding the Fourth Proportional to 22,609.20, 33,900.48 and 9,278.22

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Solution

The fourth proportional to 22,609.20, 33,900.48 and 9,278.22 is: 13,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,609.20 : 33,900.48 = 9,278.22 : x
  2. Step 2: Convert to fraction form
    22,609.20/33,900.48 = 9,278.22/x
  3. Step 3: Cross multiply
    22,609.20x = 33,900.48 × 9,278.22
  4. Step 4: Simplify right side
    22,609.20x = 314,536,111.55
  5. Step 5: Solve for x
    x = 314,536,111.55/22,609.20
  6. Step 6: Final answer
    x = 13,911.86

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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.