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Finding the Fourth Proportional to 10,958.50, 16,437.75 and 3,662.50

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Solution

The fourth proportional to 10,958.50, 16,437.75 and 3,662.50 is: 5,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.50 : 16,437.75 = 3,662.50 : x
  2. Step 2: Convert to fraction form
    10,958.50/16,437.75 = 3,662.50/x
  3. Step 3: Cross multiply
    10,958.50x = 16,437.75 × 3,662.50
  4. Step 4: Simplify right side
    10,958.50x = 60,203,259.38
  5. Step 5: Solve for x
    x = 60,203,259.38/10,958.50
  6. Step 6: Final answer
    x = 5,493.75

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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.