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Finding the Fourth Proportional to 17,791.84, 26,692.62 and 5,312.44

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Solution

The fourth proportional to 17,791.84, 26,692.62 and 5,312.44 is: 7,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.84 : 26,692.62 = 5,312.44 : x
  2. Step 2: Convert to fraction form
    17,791.84/26,692.62 = 5,312.44/x
  3. Step 3: Cross multiply
    17,791.84x = 26,692.62 × 5,312.44
  4. Step 4: Simplify right side
    17,791.84x = 141,802,942.19
  5. Step 5: Solve for x
    x = 141,802,942.19/17,791.84
  6. Step 6: Final answer
    x = 7,970.11

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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.