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Finding the Fourth Proportional to 36,698.40, 55,020.60 and 11,724.03

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Solution

The fourth proportional to 36,698.40, 55,020.60 and 11,724.03 is: 17,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,698.40 : 55,020.60 = 11,724.03 : x
  2. Step 2: Convert to fraction form
    36,698.40/55,020.60 = 11,724.03/x
  3. Step 3: Cross multiply
    36,698.40x = 55,020.60 × 11,724.03
  4. Step 4: Simplify right side
    36,698.40x = 645,063,165.02
  5. Step 5: Solve for x
    x = 645,063,165.02/36,698.40
  6. Step 6: Final answer
    x = 17,577.42

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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.