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Finding the Fourth Proportional to 18,394.83, 27,592.25 and 12,858.89

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Solution

The fourth proportional to 18,394.83, 27,592.25 and 12,858.89 is: 19,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.83 : 27,592.25 = 12,858.89 : x
  2. Step 2: Convert to fraction form
    18,394.83/27,592.25 = 12,858.89/x
  3. Step 3: Cross multiply
    18,394.83x = 27,592.25 × 12,858.89
  4. Step 4: Simplify right side
    18,394.83x = 354,805,505.35
  5. Step 5: Solve for x
    x = 354,805,505.35/18,394.83
  6. Step 6: Final answer
    x = 19,288.33

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Similar ratio
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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.