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Finding the Fourth Proportional to 19,534.82, 26,958.54 and 11,575.76

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Solution

The fourth proportional to 19,534.82, 26,958.54 and 11,575.76 is: 15,974.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,534.82 : 26,958.54 = 11,575.76 : x
  2. Step 2: Convert to fraction form
    19,534.82/26,958.54 = 11,575.76/x
  3. Step 3: Cross multiply
    19,534.82x = 26,958.54 × 11,575.76
  4. Step 4: Simplify right side
    19,534.82x = 312,065,588.99
  5. Step 5: Solve for x
    x = 312,065,588.99/19,534.82
  6. Step 6: Final answer
    x = 15,974.84

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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.