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Finding the Fourth Proportional to 17,989.38, 26,965.62 and 6,893.19

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Solution

The fourth proportional to 17,989.38, 26,965.62 and 6,893.19 is: 10,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.38 : 26,965.62 = 6,893.19 : x
  2. Step 2: Convert to fraction form
    17,989.38/26,965.62 = 6,893.19/x
  3. Step 3: Cross multiply
    17,989.38x = 26,965.62 × 6,893.19
  4. Step 4: Simplify right side
    17,989.38x = 185,879,142.13
  5. Step 5: Solve for x
    x = 185,879,142.13/17,989.38
  6. Step 6: Final answer
    x = 10,332.72

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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.