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Finding the Fourth Proportional to 17,703.12, 26,536.09 and 8,919.62

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Solution

The fourth proportional to 17,703.12, 26,536.09 and 8,919.62 is: 13,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,703.12 : 26,536.09 = 8,919.62 : x
  2. Step 2: Convert to fraction form
    17,703.12/26,536.09 = 8,919.62/x
  3. Step 3: Cross multiply
    17,703.12x = 26,536.09 × 8,919.62
  4. Step 4: Simplify right side
    17,703.12x = 236,691,800.34
  5. Step 5: Solve for x
    x = 236,691,800.34/17,703.12
  6. Step 6: Final answer
    x = 13,370.06

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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.