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Finding the Fourth Proportional to 17,661.69, 24,375.47 and 11,392.29

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Solution

The fourth proportional to 17,661.69, 24,375.47 and 11,392.29 is: 15,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.69 : 24,375.47 = 11,392.29 : x
  2. Step 2: Convert to fraction form
    17,661.69/24,375.47 = 11,392.29/x
  3. Step 3: Cross multiply
    17,661.69x = 24,375.47 × 11,392.29
  4. Step 4: Simplify right side
    17,661.69x = 277,692,366.16
  5. Step 5: Solve for x
    x = 277,692,366.16/17,661.69
  6. Step 6: Final answer
    x = 15,722.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.