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Finding the Fourth Proportional to 22,672.71, 33,976.13 and 12,790.98

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Solution

The fourth proportional to 22,672.71, 33,976.13 and 12,790.98 is: 19,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.71 : 33,976.13 = 12,790.98 : x
  2. Step 2: Convert to fraction form
    22,672.71/33,976.13 = 12,790.98/x
  3. Step 3: Cross multiply
    22,672.71x = 33,976.13 × 12,790.98
  4. Step 4: Simplify right side
    22,672.71x = 434,587,935.35
  5. Step 5: Solve for x
    x = 434,587,935.35/22,672.71
  6. Step 6: Final answer
    x = 19,167.89

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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.