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Finding the Fourth Proportional to 20,514.97, 30,773.96 and 7,367.45

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Solution

The fourth proportional to 20,514.97, 30,773.96 and 7,367.45 is: 11,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.97 : 30,773.96 = 7,367.45 : x
  2. Step 2: Convert to fraction form
    20,514.97/30,773.96 = 7,367.45/x
  3. Step 3: Cross multiply
    20,514.97x = 30,773.96 × 7,367.45
  4. Step 4: Simplify right side
    20,514.97x = 226,725,611.60
  5. Step 5: Solve for x
    x = 226,725,611.60/20,514.97
  6. Step 6: Final answer
    x = 11,051.72

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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.