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Finding the Fourth Proportional to 27,691.92, 41,495.34 and 18,795.68

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Solution

The fourth proportional to 27,691.92, 41,495.34 and 18,795.68 is: 28,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.92 : 41,495.34 = 18,795.68 : x
  2. Step 2: Convert to fraction form
    27,691.92/41,495.34 = 18,795.68/x
  3. Step 3: Cross multiply
    27,691.92x = 41,495.34 × 18,795.68
  4. Step 4: Simplify right side
    27,691.92x = 779,933,132.13
  5. Step 5: Solve for x
    x = 779,933,132.13/27,691.92
  6. Step 6: Final answer
    x = 28,164.65

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1.5x scale

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.