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Finding the Fourth Proportional to 18,616.02, 27,933.14 and 8,756.29

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Solution

The fourth proportional to 18,616.02, 27,933.14 and 8,756.29 is: 13,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.02 : 27,933.14 = 8,756.29 : x
  2. Step 2: Convert to fraction form
    18,616.02/27,933.14 = 8,756.29/x
  3. Step 3: Cross multiply
    18,616.02x = 27,933.14 × 8,756.29
  4. Step 4: Simplify right side
    18,616.02x = 244,590,674.45
  5. Step 5: Solve for x
    x = 244,590,674.45/18,616.02
  6. Step 6: Final answer
    x = 13,138.72

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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.