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Finding the Fourth Proportional to 17,486.67, 26,230.10 and 6,388.77

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Solution

The fourth proportional to 17,486.67, 26,230.10 and 6,388.77 is: 9,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,486.67 : 26,230.10 = 6,388.77 : x
  2. Step 2: Convert to fraction form
    17,486.67/26,230.10 = 6,388.77/x
  3. Step 3: Cross multiply
    17,486.67x = 26,230.10 × 6,388.77
  4. Step 4: Simplify right side
    17,486.67x = 167,578,044.03
  5. Step 5: Solve for x
    x = 167,578,044.03/17,486.67
  6. Step 6: Final answer
    x = 9,583.19

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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.