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Finding the Fourth Proportional to 17,392.86, 26,089.29 and 4,245.21

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Solution

The fourth proportional to 17,392.86, 26,089.29 and 4,245.21 is: 6,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,392.86 : 26,089.29 = 4,245.21 : x
  2. Step 2: Convert to fraction form
    17,392.86/26,089.29 = 4,245.21/x
  3. Step 3: Cross multiply
    17,392.86x = 26,089.29 × 4,245.21
  4. Step 4: Simplify right side
    17,392.86x = 110,754,514.80
  5. Step 5: Solve for x
    x = 110,754,514.80/17,392.86
  6. Step 6: Final answer
    x = 6,367.82

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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.