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Finding the Fourth Proportional to 32,787, 49,180.68 and 8,163

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Solution

The fourth proportional to 32,787, 49,180.68 and 8,163 is: 12,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,787 : 49,180.68 = 8,163 : x
  2. Step 2: Convert to fraction form
    32,787/49,180.68 = 8,163/x
  3. Step 3: Cross multiply
    32,787x = 49,180.68 × 8,163
  4. Step 4: Simplify right side
    32,787x = 401,461,890.84
  5. Step 5: Solve for x
    x = 401,461,890.84/32,787
  6. Step 6: Final answer
    x = 12,244.54

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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.