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Finding the Fourth Proportional to 17,692.49, 26,548.99 and 8,928.09

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Solution

The fourth proportional to 17,692.49, 26,548.99 and 8,928.09 is: 13,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,692.49 : 26,548.99 = 8,928.09 : x
  2. Step 2: Convert to fraction form
    17,692.49/26,548.99 = 8,928.09/x
  3. Step 3: Cross multiply
    17,692.49x = 26,548.99 × 8,928.09
  4. Step 4: Simplify right side
    17,692.49x = 237,031,772.13
  5. Step 5: Solve for x
    x = 237,031,772.13/17,692.49
  6. Step 6: Final answer
    x = 13,397.31

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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.