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Finding the Fourth Proportional to 17,957.32, 26,936.19 and 6,865.09

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Solution

The fourth proportional to 17,957.32, 26,936.19 and 6,865.09 is: 10,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.32 : 26,936.19 = 6,865.09 : x
  2. Step 2: Convert to fraction form
    17,957.32/26,936.19 = 6,865.09/x
  3. Step 3: Cross multiply
    17,957.32x = 26,936.19 × 6,865.09
  4. Step 4: Simplify right side
    17,957.32x = 184,919,368.61
  5. Step 5: Solve for x
    x = 184,919,368.61/17,957.32
  6. Step 6: Final answer
    x = 10,297.72

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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.