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Finding the Fourth Proportional to 17,620.54, 26,416.00 and 8,255.62

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Solution

The fourth proportional to 17,620.54, 26,416.00 and 8,255.62 is: 12,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.54 : 26,416.00 = 8,255.62 : x
  2. Step 2: Convert to fraction form
    17,620.54/26,416.00 = 8,255.62/x
  3. Step 3: Cross multiply
    17,620.54x = 26,416.00 × 8,255.62
  4. Step 4: Simplify right side
    17,620.54x = 218,080,478.04
  5. Step 5: Solve for x
    x = 218,080,478.04/17,620.54
  6. Step 6: Final answer
    x = 12,376.49

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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.