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Finding the Fourth Proportional to 36,458, 54,692.28 and 11,489.60

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Solution

The fourth proportional to 36,458, 54,692.28 and 11,489.60 is: 17,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,458 : 54,692.28 = 11,489.60 : x
  2. Step 2: Convert to fraction form
    36,458/54,692.28 = 11,489.60/x
  3. Step 3: Cross multiply
    36,458x = 54,692.28 × 11,489.60
  4. Step 4: Simplify right side
    36,458x = 628,392,420.29
  5. Step 5: Solve for x
    x = 628,392,420.29/36,458
  6. Step 6: Final answer
    x = 17,236.06

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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.