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Finding the Fourth Proportional to 18,322.34, 25,285.10 and 10,768.82

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Solution

The fourth proportional to 18,322.34, 25,285.10 and 10,768.82 is: 14,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.34 : 25,285.10 = 10,768.82 : x
  2. Step 2: Convert to fraction form
    18,322.34/25,285.10 = 10,768.82/x
  3. Step 3: Cross multiply
    18,322.34x = 25,285.10 × 10,768.82
  4. Step 4: Simplify right side
    18,322.34x = 272,290,510.31
  5. Step 5: Solve for x
    x = 272,290,510.31/18,322.34
  6. Step 6: Final answer
    x = 14,861.12

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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.