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Finding the Fourth Proportional to 27,201.59, 40,764.08 and 21,630.21

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Solution

The fourth proportional to 27,201.59, 40,764.08 and 21,630.21 is: 32,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,201.59 : 40,764.08 = 21,630.21 : x
  2. Step 2: Convert to fraction form
    27,201.59/40,764.08 = 21,630.21/x
  3. Step 3: Cross multiply
    27,201.59x = 40,764.08 × 21,630.21
  4. Step 4: Simplify right side
    27,201.59x = 881,735,610.86
  5. Step 5: Solve for x
    x = 881,735,610.86/27,201.59
  6. Step 6: Final answer
    x = 32,414.86

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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.