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Finding the Fourth Proportional to 30,348.92, 41,857.77 and 19,741.94

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Solution

The fourth proportional to 30,348.92, 41,857.77 and 19,741.94 is: 27,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.92 : 41,857.77 = 19,741.94 : x
  2. Step 2: Convert to fraction form
    30,348.92/41,857.77 = 19,741.94/x
  3. Step 3: Cross multiply
    30,348.92x = 41,857.77 × 19,741.94
  4. Step 4: Simplify right side
    30,348.92x = 826,353,583.87
  5. Step 5: Solve for x
    x = 826,353,583.87/30,348.92
  6. Step 6: Final answer
    x = 27,228.43

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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.