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Finding the Fourth Proportional to 25,892.68, 38,839.02 and 8,126.08

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Solution

The fourth proportional to 25,892.68, 38,839.02 and 8,126.08 is: 12,189.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,892.68 : 38,839.02 = 8,126.08 : x
  2. Step 2: Convert to fraction form
    25,892.68/38,839.02 = 8,126.08/x
  3. Step 3: Cross multiply
    25,892.68x = 38,839.02 × 8,126.08
  4. Step 4: Simplify right side
    25,892.68x = 315,608,943.38
  5. Step 5: Solve for x
    x = 315,608,943.38/25,892.68
  6. Step 6: Final answer
    x = 12,189.12

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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.