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Finding the Fourth Proportional to 27,551.34, 38,021.10 and 14,976.12

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Solution

The fourth proportional to 27,551.34, 38,021.10 and 14,976.12 is: 20,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,551.34 : 38,021.10 = 14,976.12 : x
  2. Step 2: Convert to fraction form
    27,551.34/38,021.10 = 14,976.12/x
  3. Step 3: Cross multiply
    27,551.34x = 38,021.10 × 14,976.12
  4. Step 4: Simplify right side
    27,551.34x = 569,408,556.13
  5. Step 5: Solve for x
    x = 569,408,556.13/27,551.34
  6. Step 6: Final answer
    x = 20,667.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.