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Finding the Fourth Proportional to 17,379, 26,068.26 and 4,231.38

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Solution

The fourth proportional to 17,379, 26,068.26 and 4,231.38 is: 6,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,379 : 26,068.26 = 4,231.38 : x
  2. Step 2: Convert to fraction form
    17,379/26,068.26 = 4,231.38/x
  3. Step 3: Cross multiply
    17,379x = 26,068.26 × 4,231.38
  4. Step 4: Simplify right side
    17,379x = 110,304,714.00
  5. Step 5: Solve for x
    x = 110,304,714.00/17,379
  6. Step 6: Final answer
    x = 6,347.01

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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.