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Finding the Fourth Proportional to 17,620.92, 26,412.24 and 8,255.10

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Solution

The fourth proportional to 17,620.92, 26,412.24 and 8,255.10 is: 12,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.92 : 26,412.24 = 8,255.10 : x
  2. Step 2: Convert to fraction form
    17,620.92/26,412.24 = 8,255.10/x
  3. Step 3: Cross multiply
    17,620.92x = 26,412.24 × 8,255.10
  4. Step 4: Simplify right side
    17,620.92x = 218,035,682.42
  5. Step 5: Solve for x
    x = 218,035,682.42/17,620.92
  6. Step 6: Final answer
    x = 12,373.68

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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.