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Finding the Fourth Proportional to 11,323.63, 16,987.89 and 3,425.52

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Solution

The fourth proportional to 11,323.63, 16,987.89 and 3,425.52 is: 5,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.63 : 16,987.89 = 3,425.52 : x
  2. Step 2: Convert to fraction form
    11,323.63/16,987.89 = 3,425.52/x
  3. Step 3: Cross multiply
    11,323.63x = 16,987.89 × 3,425.52
  4. Step 4: Simplify right side
    11,323.63x = 58,192,433.50
  5. Step 5: Solve for x
    x = 58,192,433.50/11,323.63
  6. Step 6: Final answer
    x = 5,139.03

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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.