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Finding the Fourth Proportional to 27,644.35, 38,149.98 and 16,890.97

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Solution

The fourth proportional to 27,644.35, 38,149.98 and 16,890.97 is: 23,310.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,644.35 : 38,149.98 = 16,890.97 : x
  2. Step 2: Convert to fraction form
    27,644.35/38,149.98 = 16,890.97/x
  3. Step 3: Cross multiply
    27,644.35x = 38,149.98 × 16,890.97
  4. Step 4: Simplify right side
    27,644.35x = 644,390,167.68
  5. Step 5: Solve for x
    x = 644,390,167.68/27,644.35
  6. Step 6: Final answer
    x = 23,310.01

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1.5x scale

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.