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Finding the Fourth Proportional to 17,112.10, 25,668.06 and 7,755.34

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Solution

The fourth proportional to 17,112.10, 25,668.06 and 7,755.34 is: 11,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,112.10 : 25,668.06 = 7,755.34 : x
  2. Step 2: Convert to fraction form
    17,112.10/25,668.06 = 7,755.34/x
  3. Step 3: Cross multiply
    17,112.10x = 25,668.06 × 7,755.34
  4. Step 4: Simplify right side
    17,112.10x = 199,064,532.44
  5. Step 5: Solve for x
    x = 199,064,532.44/17,112.10
  6. Step 6: Final answer
    x = 11,632.97

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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.