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Finding the Fourth Proportional to 17,692.29, 26,543.03 and 5,212.76

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Solution

The fourth proportional to 17,692.29, 26,543.03 and 5,212.76 is: 7,820.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,692.29 : 26,543.03 = 5,212.76 : x
  2. Step 2: Convert to fraction form
    17,692.29/26,543.03 = 5,212.76/x
  3. Step 3: Cross multiply
    17,692.29x = 26,543.03 × 5,212.76
  4. Step 4: Simplify right side
    17,692.29x = 138,362,286.28
  5. Step 5: Solve for x
    x = 138,362,286.28/17,692.29
  6. Step 6: Final answer
    x = 7,820.48

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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.