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Finding the Fourth Proportional to 45,378.49, 68,067.80 and 17,676.49

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Solution

The fourth proportional to 45,378.49, 68,067.80 and 17,676.49 is: 26,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.49 : 68,067.80 = 17,676.49 : x
  2. Step 2: Convert to fraction form
    45,378.49/68,067.80 = 17,676.49/x
  3. Step 3: Cross multiply
    45,378.49x = 68,067.80 × 17,676.49
  4. Step 4: Simplify right side
    45,378.49x = 1,203,199,786.02
  5. Step 5: Solve for x
    x = 1,203,199,786.02/45,378.49
  6. Step 6: Final answer
    x = 26,514.76

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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.