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Finding the Fourth Proportional to 17,115.43, 23,619.33 and 9,663.43

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Solution

The fourth proportional to 17,115.43, 23,619.33 and 9,663.43 is: 13,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.43 : 23,619.33 = 9,663.43 : x
  2. Step 2: Convert to fraction form
    17,115.43/23,619.33 = 9,663.43/x
  3. Step 3: Cross multiply
    17,115.43x = 23,619.33 × 9,663.43
  4. Step 4: Simplify right side
    17,115.43x = 228,243,742.10
  5. Step 5: Solve for x
    x = 228,243,742.10/17,115.43
  6. Step 6: Final answer
    x = 13,335.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.