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Finding the Fourth Proportional to 10,935, 16,402.50 and 2,727

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Solution

The fourth proportional to 10,935, 16,402.50 and 2,727 is: 4,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935 : 16,402.50 = 2,727 : x
  2. Step 2: Convert to fraction form
    10,935/16,402.50 = 2,727/x
  3. Step 3: Cross multiply
    10,935x = 16,402.50 × 2,727
  4. Step 4: Simplify right side
    10,935x = 44,729,617.50
  5. Step 5: Solve for x
    x = 44,729,617.50/10,935
  6. Step 6: Final answer
    x = 4,090.50

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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.