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Finding the Fourth Proportional to 49,591.36, 74,387.04 and 12,655.36

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Solution

The fourth proportional to 49,591.36, 74,387.04 and 12,655.36 is: 18,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,591.36 : 74,387.04 = 12,655.36 : x
  2. Step 2: Convert to fraction form
    49,591.36/74,387.04 = 12,655.36/x
  3. Step 3: Cross multiply
    49,591.36x = 74,387.04 × 12,655.36
  4. Step 4: Simplify right side
    49,591.36x = 941,394,770.53
  5. Step 5: Solve for x
    x = 941,394,770.53/49,591.36
  6. Step 6: Final answer
    x = 18,983.04

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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.