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Finding the Fourth Proportional to 27,819.99, 38,398.68 and 17,203.41

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Solution

The fourth proportional to 27,819.99, 38,398.68 and 17,203.41 is: 23,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.99 : 38,398.68 = 17,203.41 : x
  2. Step 2: Convert to fraction form
    27,819.99/38,398.68 = 17,203.41/x
  3. Step 3: Cross multiply
    27,819.99x = 38,398.68 × 17,203.41
  4. Step 4: Simplify right side
    27,819.99x = 660,588,235.50
  5. Step 5: Solve for x
    x = 660,588,235.50/27,819.99
  6. Step 6: Final answer
    x = 23,745.09

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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.