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Finding the Fourth Proportional to 17,755.68, 26,612.34 and 8,255.16

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Solution

The fourth proportional to 17,755.68, 26,612.34 and 8,255.16 is: 12,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,755.68 : 26,612.34 = 8,255.16 : x
  2. Step 2: Convert to fraction form
    17,755.68/26,612.34 = 8,255.16/x
  3. Step 3: Cross multiply
    17,755.68x = 26,612.34 × 8,255.16
  4. Step 4: Simplify right side
    17,755.68x = 219,689,124.67
  5. Step 5: Solve for x
    x = 219,689,124.67/17,755.68
  6. Step 6: Final answer
    x = 12,372.89

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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.