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Finding the Fourth Proportional to 27,286.96, 37,665.96 and 17,221.95

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Solution

The fourth proportional to 27,286.96, 37,665.96 and 17,221.95 is: 23,772.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,286.96 : 37,665.96 = 17,221.95 : x
  2. Step 2: Convert to fraction form
    27,286.96/37,665.96 = 17,221.95/x
  3. Step 3: Cross multiply
    27,286.96x = 37,665.96 × 17,221.95
  4. Step 4: Simplify right side
    27,286.96x = 648,681,279.82
  5. Step 5: Solve for x
    x = 648,681,279.82/27,286.96
  6. Step 6: Final answer
    x = 23,772.58

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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.