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Finding the Fourth Proportional to 27,338.46, 40,857.89 and 19,958.46

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Solution

The fourth proportional to 27,338.46, 40,857.89 and 19,958.46 is: 29,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,338.46 : 40,857.89 = 19,958.46 : x
  2. Step 2: Convert to fraction form
    27,338.46/40,857.89 = 19,958.46/x
  3. Step 3: Cross multiply
    27,338.46x = 40,857.89 × 19,958.46
  4. Step 4: Simplify right side
    27,338.46x = 815,460,563.25
  5. Step 5: Solve for x
    x = 815,460,563.25/27,338.46
  6. Step 6: Final answer
    x = 29,828.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.