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Finding the Fourth Proportional to 17,433.80, 26,112.30 and 15,129.80

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Solution

The fourth proportional to 17,433.80, 26,112.30 and 15,129.80 is: 22,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,433.80 : 26,112.30 = 15,129.80 : x
  2. Step 2: Convert to fraction form
    17,433.80/26,112.30 = 15,129.80/x
  3. Step 3: Cross multiply
    17,433.80x = 26,112.30 × 15,129.80
  4. Step 4: Simplify right side
    17,433.80x = 395,073,876.54
  5. Step 5: Solve for x
    x = 395,073,876.54/17,433.80
  6. Step 6: Final answer
    x = 22,661.37

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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.