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Finding the Fourth Proportional to 17,238.20, 25,870.10 and 6,857.40

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Solution

The fourth proportional to 17,238.20, 25,870.10 and 6,857.40 is: 10,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,238.20 : 25,870.10 = 6,857.40 : x
  2. Step 2: Convert to fraction form
    17,238.20/25,870.10 = 6,857.40/x
  3. Step 3: Cross multiply
    17,238.20x = 25,870.10 × 6,857.40
  4. Step 4: Simplify right side
    17,238.20x = 177,401,623.74
  5. Step 5: Solve for x
    x = 177,401,623.74/17,238.20
  6. Step 6: Final answer
    x = 10,291.19

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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.