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Finding the Fourth Proportional to 22,453.72, 33,684.04 and 7,659.18

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Solution

The fourth proportional to 22,453.72, 33,684.04 and 7,659.18 is: 11,489.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.72 : 33,684.04 = 7,659.18 : x
  2. Step 2: Convert to fraction form
    22,453.72/33,684.04 = 7,659.18/x
  3. Step 3: Cross multiply
    22,453.72x = 33,684.04 × 7,659.18
  4. Step 4: Simplify right side
    22,453.72x = 257,992,135.06
  5. Step 5: Solve for x
    x = 257,992,135.06/22,453.72
  6. Step 6: Final answer
    x = 11,489.95

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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.