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Finding the Fourth Proportional to 17,175.78, 25,719.93 and 11,314.62

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Solution

The fourth proportional to 17,175.78, 25,719.93 and 11,314.62 is: 16,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,175.78 : 25,719.93 = 11,314.62 : x
  2. Step 2: Convert to fraction form
    17,175.78/25,719.93 = 11,314.62/x
  3. Step 3: Cross multiply
    17,175.78x = 25,719.93 × 11,314.62
  4. Step 4: Simplify right side
    17,175.78x = 291,011,234.38
  5. Step 5: Solve for x
    x = 291,011,234.38/17,175.78
  6. Step 6: Final answer
    x = 16,943.12

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Why These Related Problems?

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