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Finding the Fourth Proportional to 23,243.40, 34,861.68 and 7,659

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Solution

The fourth proportional to 23,243.40, 34,861.68 and 7,659 is: 11,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,243.40 : 34,861.68 = 7,659 : x
  2. Step 2: Convert to fraction form
    23,243.40/34,861.68 = 7,659/x
  3. Step 3: Cross multiply
    23,243.40x = 34,861.68 × 7,659
  4. Step 4: Simplify right side
    23,243.40x = 267,005,607.12
  5. Step 5: Solve for x
    x = 267,005,607.12/23,243.40
  6. Step 6: Final answer
    x = 11,487.37

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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.