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Finding the Fourth Proportional to 18,187.44, 27,278.10 and 5,875.44

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Solution

The fourth proportional to 18,187.44, 27,278.10 and 5,875.44 is: 8,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.44 : 27,278.10 = 5,875.44 : x
  2. Step 2: Convert to fraction form
    18,187.44/27,278.10 = 5,875.44/x
  3. Step 3: Cross multiply
    18,187.44x = 27,278.10 × 5,875.44
  4. Step 4: Simplify right side
    18,187.44x = 160,270,839.86
  5. Step 5: Solve for x
    x = 160,270,839.86/18,187.44
  6. Step 6: Final answer
    x = 8,812.17

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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.