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Finding the Fourth Proportional to 36,091, 54,132.42 and 11,128.96

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Solution

The fourth proportional to 36,091, 54,132.42 and 11,128.96 is: 16,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,091 : 54,132.42 = 11,128.96 : x
  2. Step 2: Convert to fraction form
    36,091/54,132.42 = 11,128.96/x
  3. Step 3: Cross multiply
    36,091x = 54,132.42 × 11,128.96
  4. Step 4: Simplify right side
    36,091x = 602,437,536.88
  5. Step 5: Solve for x
    x = 602,437,536.88/36,091
  6. Step 6: Final answer
    x = 16,692.18

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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.