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Finding the Fourth Proportional to 5,203.56, 7,806.16 and 1,692.74

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Solution

The fourth proportional to 5,203.56, 7,806.16 and 1,692.74 is: 2,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,203.56 : 7,806.16 = 1,692.74 : x
  2. Step 2: Convert to fraction form
    5,203.56/7,806.16 = 1,692.74/x
  3. Step 3: Cross multiply
    5,203.56x = 7,806.16 × 1,692.74
  4. Step 4: Simplify right side
    5,203.56x = 13,213,814.56
  5. Step 5: Solve for x
    x = 13,213,814.56/5,203.56
  6. Step 6: Final answer
    x = 2,539.38

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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.