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Finding the Fourth Proportional to 18,577.21, 27,868.25 and 9,812.47

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Solution

The fourth proportional to 18,577.21, 27,868.25 and 9,812.47 is: 14,719.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.21 : 27,868.25 = 9,812.47 : x
  2. Step 2: Convert to fraction form
    18,577.21/27,868.25 = 9,812.47/x
  3. Step 3: Cross multiply
    18,577.21x = 27,868.25 × 9,812.47
  4. Step 4: Simplify right side
    18,577.21x = 273,456,367.08
  5. Step 5: Solve for x
    x = 273,456,367.08/18,577.21
  6. Step 6: Final answer
    x = 14,719.99

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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.