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Finding the Fourth Proportional to 22,178.55, 33,265.92 and 8,138.01

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Solution

The fourth proportional to 22,178.55, 33,265.92 and 8,138.01 is: 12,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.55 : 33,265.92 = 8,138.01 : x
  2. Step 2: Convert to fraction form
    22,178.55/33,265.92 = 8,138.01/x
  3. Step 3: Cross multiply
    22,178.55x = 33,265.92 × 8,138.01
  4. Step 4: Simplify right side
    22,178.55x = 270,718,223.29
  5. Step 5: Solve for x
    x = 270,718,223.29/22,178.55
  6. Step 6: Final answer
    x = 12,206.31

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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.