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Finding the Fourth Proportional to 17,047.84, 25,574.60 and 7,687.64

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Solution

The fourth proportional to 17,047.84, 25,574.60 and 7,687.64 is: 11,532.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,047.84 : 25,574.60 = 7,687.64 : x
  2. Step 2: Convert to fraction form
    17,047.84/25,574.60 = 7,687.64/x
  3. Step 3: Cross multiply
    17,047.84x = 25,574.60 × 7,687.64
  4. Step 4: Simplify right side
    17,047.84x = 196,608,317.94
  5. Step 5: Solve for x
    x = 196,608,317.94/17,047.84
  6. Step 6: Final answer
    x = 11,532.74

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.