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Finding the Fourth Proportional to 17,107.80, 25,632.90 and 11,261.40

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Solution

The fourth proportional to 17,107.80, 25,632.90 and 11,261.40 is: 16,873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,107.80 : 25,632.90 = 11,261.40 : x
  2. Step 2: Convert to fraction form
    17,107.80/25,632.90 = 11,261.40/x
  3. Step 3: Cross multiply
    17,107.80x = 25,632.90 × 11,261.40
  4. Step 4: Simplify right side
    17,107.80x = 288,662,340.06
  5. Step 5: Solve for x
    x = 288,662,340.06/17,107.80
  6. Step 6: Final answer
    x = 16,873.14

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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.