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Finding the Fourth Proportional to 18,709.56, 25,817.36 and 10,325.52

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Solution

The fourth proportional to 18,709.56, 25,817.36 and 10,325.52 is: 14,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.56 : 25,817.36 = 10,325.52 : x
  2. Step 2: Convert to fraction form
    18,709.56/25,817.36 = 10,325.52/x
  3. Step 3: Cross multiply
    18,709.56x = 25,817.36 × 10,325.52
  4. Step 4: Simplify right side
    18,709.56x = 266,577,615.40
  5. Step 5: Solve for x
    x = 266,577,615.40/18,709.56
  6. Step 6: Final answer
    x = 14,248.20

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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.