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Finding the Fourth Proportional to 17,128.30, 23,636.55 and 9,574.64

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Solution

The fourth proportional to 17,128.30, 23,636.55 and 9,574.64 is: 13,212.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.30 : 23,636.55 = 9,574.64 : x
  2. Step 2: Convert to fraction form
    17,128.30/23,636.55 = 9,574.64/x
  3. Step 3: Cross multiply
    17,128.30x = 23,636.55 × 9,574.64
  4. Step 4: Simplify right side
    17,128.30x = 226,311,552.09
  5. Step 5: Solve for x
    x = 226,311,552.09/17,128.30
  6. Step 6: Final answer
    x = 13,212.73

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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.