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Finding the Fourth Proportional to 17,755.71, 26,628.89 and 8,393.21

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Solution

The fourth proportional to 17,755.71, 26,628.89 and 8,393.21 is: 12,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,755.71 : 26,628.89 = 8,393.21 : x
  2. Step 2: Convert to fraction form
    17,755.71/26,628.89 = 8,393.21/x
  3. Step 3: Cross multiply
    17,755.71x = 26,628.89 × 8,393.21
  4. Step 4: Simplify right side
    17,755.71x = 223,501,690.73
  5. Step 5: Solve for x
    x = 223,501,690.73/17,755.71
  6. Step 6: Final answer
    x = 12,587.60

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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.