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Finding the Fourth Proportional to 8,167.95, 12,253.01 and 2,619.45

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Solution

The fourth proportional to 8,167.95, 12,253.01 and 2,619.45 is: 3,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.95 : 12,253.01 = 2,619.45 : x
  2. Step 2: Convert to fraction form
    8,167.95/12,253.01 = 2,619.45/x
  3. Step 3: Cross multiply
    8,167.95x = 12,253.01 × 2,619.45
  4. Step 4: Simplify right side
    8,167.95x = 32,096,147.04
  5. Step 5: Solve for x
    x = 32,096,147.04/8,167.95
  6. Step 6: Final answer
    x = 3,929.52

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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.