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Finding the Fourth Proportional to 17,161.92, 25,636.40 and 12,444.48

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Solution

The fourth proportional to 17,161.92, 25,636.40 and 12,444.48 is: 18,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.92 : 25,636.40 = 12,444.48 : x
  2. Step 2: Convert to fraction form
    17,161.92/25,636.40 = 12,444.48/x
  3. Step 3: Cross multiply
    17,161.92x = 25,636.40 × 12,444.48
  4. Step 4: Simplify right side
    17,161.92x = 319,031,667.07
  5. Step 5: Solve for x
    x = 319,031,667.07/17,161.92
  6. Step 6: Final answer
    x = 18,589.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.