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Finding the Fourth Proportional to 36,036.50, 54,054.99 and 11,412.50

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Solution

The fourth proportional to 36,036.50, 54,054.99 and 11,412.50 is: 17,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,036.50 : 54,054.99 = 11,412.50 : x
  2. Step 2: Convert to fraction form
    36,036.50/54,054.99 = 11,412.50/x
  3. Step 3: Cross multiply
    36,036.50x = 54,054.99 × 11,412.50
  4. Step 4: Simplify right side
    36,036.50x = 616,902,573.38
  5. Step 5: Solve for x
    x = 616,902,573.38/36,036.50
  6. Step 6: Final answer
    x = 17,118.83

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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.