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Finding the Fourth Proportional to 1,692.56, 2,536.22 and 1,173.58

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Solution

The fourth proportional to 1,692.56, 2,536.22 and 1,173.58 is: 1,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.56 : 2,536.22 = 1,173.58 : x
  2. Step 2: Convert to fraction form
    1,692.56/2,536.22 = 1,173.58/x
  3. Step 3: Cross multiply
    1,692.56x = 2,536.22 × 1,173.58
  4. Step 4: Simplify right side
    1,692.56x = 2,976,457.07
  5. Step 5: Solve for x
    x = 2,976,457.07/1,692.56
  6. Step 6: Final answer
    x = 1,758.55

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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.