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Finding the Fourth Proportional to 18,652.99, 27,969.98 and 9,165.94

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Solution

The fourth proportional to 18,652.99, 27,969.98 and 9,165.94 is: 13,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,652.99 : 27,969.98 = 9,165.94 : x
  2. Step 2: Convert to fraction form
    18,652.99/27,969.98 = 9,165.94/x
  3. Step 3: Cross multiply
    18,652.99x = 27,969.98 × 9,165.94
  4. Step 4: Simplify right side
    18,652.99x = 256,370,972.80
  5. Step 5: Solve for x
    x = 256,370,972.80/18,652.99
  6. Step 6: Final answer
    x = 13,744.23

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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.