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Finding the Fourth Proportional to 13,811.84, 19,060.92 and 7,524.56

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Solution

The fourth proportional to 13,811.84, 19,060.92 and 7,524.56 is: 10,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.84 : 19,060.92 = 7,524.56 : x
  2. Step 2: Convert to fraction form
    13,811.84/19,060.92 = 7,524.56/x
  3. Step 3: Cross multiply
    13,811.84x = 19,060.92 × 7,524.56
  4. Step 4: Simplify right side
    13,811.84x = 143,425,036.20
  5. Step 5: Solve for x
    x = 143,425,036.20/13,811.84
  6. Step 6: Final answer
    x = 10,384.21

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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.