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Finding the Fourth Proportional to 17,112.81, 25,653.34 and 8,774.41

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Solution

The fourth proportional to 17,112.81, 25,653.34 and 8,774.41 is: 13,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,112.81 : 25,653.34 = 8,774.41 : x
  2. Step 2: Convert to fraction form
    17,112.81/25,653.34 = 8,774.41/x
  3. Step 3: Cross multiply
    17,112.81x = 25,653.34 × 8,774.41
  4. Step 4: Simplify right side
    17,112.81x = 225,092,923.03
  5. Step 5: Solve for x
    x = 225,092,923.03/17,112.81
  6. Step 6: Final answer
    x = 13,153.48

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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.