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Finding the Fourth Proportional to 11,690.01, 17,528.02 and 5,451.44

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Solution

The fourth proportional to 11,690.01, 17,528.02 and 5,451.44 is: 8,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.01 : 17,528.02 = 5,451.44 : x
  2. Step 2: Convert to fraction form
    11,690.01/17,528.02 = 5,451.44/x
  3. Step 3: Cross multiply
    11,690.01x = 17,528.02 × 5,451.44
  4. Step 4: Simplify right side
    11,690.01x = 95,552,848.08
  5. Step 5: Solve for x
    x = 95,552,848.08/11,690.01
  6. Step 6: Final answer
    x = 8,173.89

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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.