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Finding the Fourth Proportional to 17,180.96, 25,765.97 and 5,491.45

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Solution

The fourth proportional to 17,180.96, 25,765.97 and 5,491.45 is: 8,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,180.96 : 25,765.97 = 5,491.45 : x
  2. Step 2: Convert to fraction form
    17,180.96/25,765.97 = 5,491.45/x
  3. Step 3: Cross multiply
    17,180.96x = 25,765.97 × 5,491.45
  4. Step 4: Simplify right side
    17,180.96x = 141,492,407.13
  5. Step 5: Solve for x
    x = 141,492,407.13/17,180.96
  6. Step 6: Final answer
    x = 8,235.42

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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.