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Finding the Fourth Proportional to 27,279.58, 40,919.21 and 7,016.30

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Solution

The fourth proportional to 27,279.58, 40,919.21 and 7,016.30 is: 10,524.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.58 : 40,919.21 = 7,016.30 : x
  2. Step 2: Convert to fraction form
    27,279.58/40,919.21 = 7,016.30/x
  3. Step 3: Cross multiply
    27,279.58x = 40,919.21 × 7,016.30
  4. Step 4: Simplify right side
    27,279.58x = 287,101,520.34
  5. Step 5: Solve for x
    x = 287,101,520.34/27,279.58
  6. Step 6: Final answer
    x = 10,524.41

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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.