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Finding the Fourth Proportional to 17,665.92, 24,394.80 and 13,181.92

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Solution

The fourth proportional to 17,665.92, 24,394.80 and 13,181.92 is: 18,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,665.92 : 24,394.80 = 13,181.92 : x
  2. Step 2: Convert to fraction form
    17,665.92/24,394.80 = 13,181.92/x
  3. Step 3: Cross multiply
    17,665.92x = 24,394.80 × 13,181.92
  4. Step 4: Simplify right side
    17,665.92x = 321,570,302.02
  5. Step 5: Solve for x
    x = 321,570,302.02/17,665.92
  6. Step 6: Final answer
    x = 18,202.86

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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.