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Finding the Fourth Proportional to 21,892.54, 32,839.52 and 8,565.01

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Solution

The fourth proportional to 21,892.54, 32,839.52 and 8,565.01 is: 12,847.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.54 : 32,839.52 = 8,565.01 : x
  2. Step 2: Convert to fraction form
    21,892.54/32,839.52 = 8,565.01/x
  3. Step 3: Cross multiply
    21,892.54x = 32,839.52 × 8,565.01
  4. Step 4: Simplify right side
    21,892.54x = 281,270,817.20
  5. Step 5: Solve for x
    x = 281,270,817.20/21,892.54
  6. Step 6: Final answer
    x = 12,847.79

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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.