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Finding the Fourth Proportional to 19,921.26, 27,500.67 and 11,536.14

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Solution

The fourth proportional to 19,921.26, 27,500.67 and 11,536.14 is: 15,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.26 : 27,500.67 = 11,536.14 : x
  2. Step 2: Convert to fraction form
    19,921.26/27,500.67 = 11,536.14/x
  3. Step 3: Cross multiply
    19,921.26x = 27,500.67 × 11,536.14
  4. Step 4: Simplify right side
    19,921.26x = 317,251,579.21
  5. Step 5: Solve for x
    x = 317,251,579.21/19,921.26
  6. Step 6: Final answer
    x = 15,925.28

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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.