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Finding the Fourth Proportional to 36,815.09, 55,222.02 and 9,113.09

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Solution

The fourth proportional to 36,815.09, 55,222.02 and 9,113.09 is: 13,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,815.09 : 55,222.02 = 9,113.09 : x
  2. Step 2: Convert to fraction form
    36,815.09/55,222.02 = 9,113.09/x
  3. Step 3: Cross multiply
    36,815.09x = 55,222.02 × 9,113.09
  4. Step 4: Simplify right side
    36,815.09x = 503,242,962.13
  5. Step 5: Solve for x
    x = 503,242,962.13/36,815.09
  6. Step 6: Final answer
    x = 13,669.48

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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.