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Finding the Fourth Proportional to 18,975, 26,185.52 and 10,591.50

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Solution

The fourth proportional to 18,975, 26,185.52 and 10,591.50 is: 14,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975 : 26,185.52 = 10,591.50 : x
  2. Step 2: Convert to fraction form
    18,975/26,185.52 = 10,591.50/x
  3. Step 3: Cross multiply
    18,975x = 26,185.52 × 10,591.50
  4. Step 4: Simplify right side
    18,975x = 277,343,882.12
  5. Step 5: Solve for x
    x = 277,343,882.12/18,975
  6. Step 6: Final answer
    x = 14,616.28

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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.