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Finding the Fourth Proportional to 38,806.43, 58,208.03 and 11,104.43

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Solution

The fourth proportional to 38,806.43, 58,208.03 and 11,104.43 is: 16,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,806.43 : 58,208.03 = 11,104.43 : x
  2. Step 2: Convert to fraction form
    38,806.43/58,208.03 = 11,104.43/x
  3. Step 3: Cross multiply
    38,806.43x = 58,208.03 × 11,104.43
  4. Step 4: Simplify right side
    38,806.43x = 646,367,126.21
  5. Step 5: Solve for x
    x = 646,367,126.21/38,806.43
  6. Step 6: Final answer
    x = 16,656.19

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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.