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Finding the Fourth Proportional to 14,787, 22,180.50 and 3,843

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Solution

The fourth proportional to 14,787, 22,180.50 and 3,843 is: 5,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787 : 22,180.50 = 3,843 : x
  2. Step 2: Convert to fraction form
    14,787/22,180.50 = 3,843/x
  3. Step 3: Cross multiply
    14,787x = 22,180.50 × 3,843
  4. Step 4: Simplify right side
    14,787x = 85,239,661.50
  5. Step 5: Solve for x
    x = 85,239,661.50/14,787
  6. Step 6: Final answer
    x = 5,764.50

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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.