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Finding the Fourth Proportional to 20,066.01, 27,689.90 and 11,780.52

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Solution

The fourth proportional to 20,066.01, 27,689.90 and 11,780.52 is: 16,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.01 : 27,689.90 = 11,780.52 : x
  2. Step 2: Convert to fraction form
    20,066.01/27,689.90 = 11,780.52/x
  3. Step 3: Cross multiply
    20,066.01x = 27,689.90 × 11,780.52
  4. Step 4: Simplify right side
    20,066.01x = 326,201,361.85
  5. Step 5: Solve for x
    x = 326,201,361.85/20,066.01
  6. Step 6: Final answer
    x = 16,256.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.